Mitosis is crucial for life as it replaces the worn out cells in the body and provides new cells for growth.
Mitosis is basically a kind of cell division which involves one cell, the mother cell, divides in order to produce two new cells which are known as the daughters cells which are genetically identical to itself. When we look at the cell cycle, mitosis is the part of the process of division in which the DNA present in the cell's nucleus is split to form two equal sets of chromosomes.
Since mitosis allows the DNA to split into two equal sets, it helps in ensuring equal division of chromosomes during the formation of daughter cells. The cells in the body get worn out and are replaced by the help of mitosis division. Mitosis results in the formation of two new daughter cells and hence provides new cells for growth.
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The method just described was used to create Dolly the Sheep. Dolly had
no father
but
two mothers
, an egg donor, a gene donor and a host.
This method of cloning works because egg cells are
---
and therefore
---
. This means they can grow into any type of cell as the embryo develops.
This method of cloning works because egg cells are pluripotent and therefore reprogrammable.
What do you mean by cloning?
Cloning is the process of creating genetically identical copies of an organism. This can be done through asexual reproduction, or it can be done artificially through methods such as genetic engineering. Cloning is a powerful tool used in biotechnology, and it has numerous applications in medicine, agriculture, and other areas. Cloning can be used to create genetically identical animals, plants, and even humans.
Pluripotent cells are stem cells that are capable of becoming any other type of cell in the body. This means that they have the ability to be reprogrammed into any other cell type, including those that make up an egg cell. This ability to be reprogrammed makes them ideal for cloning, as scientists can take a pluripotent cell and use it to create an egg cell that is genetically identical to the original cell. Once the egg cell is created, it can be used to create a clone of the original cell.
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what does it mean if the 23rd pair of chromosomes reads XY in humans
A. female
B. male
C. mutated
If the 23rd pair of chromosomes read XY in humans then is read as a B. male because in humans we have two sex chromosomes.
What are the sex chromosomes X and Y in the human species?The sex chromosomes X and Y in the human species are two different chromosomes when compared to the autosomal somatic chromosomes which specify the sex of an individual, If an individual inherits two X chromosomes then it is female, but if an individual inherits one Y chromosome and a Y chromosome then it is male.
Therefore, with this data, we can see that the sex chromosomes X and Y in the human species are those chromosomes that specify the sex in humans and the presence of one Y chromosome leads to the generation of an individual with male sex features instead of autosomal chromosomes.
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Which of the following is not an observation or inference that Darwin made while developing his theory of evolution
What is your greatest skills as a nurse?
Communication is your greatest skill as a nurse. as it is the key to your success.
Nursing is more than a career. It is truly a vocation. It takes a special kind of caring character, a calm mind and inner strength to take care of people when they need it.
Beyond rigorous training and exam requirements, a good nursing career requires special skills and personality traits. Communication Her skills are one of the most important requirements for a nurse's job. Both following instructions and communicating with the patient and family. Sick and distressed patients are often unable to talk about themselves.
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Look at the diagram. What evidence can you find to show that the Pacific Plate is moving, but the hot spot is not?
(A) The diagram shows active volcanoes on the other islands.
(B) Hawaii is the only island that is on the hot spot.
(C) The diagram shows that the rocks on the other islands are younger.
(D) The ocean water keeps the other islands cooler.
The hot area is not moving, but the diagram depicts active volcanoes upon that neighboring islands that might be used to demonstrate that its Pacific Plate is moving.
Describe a volcano.An breach in the crust of the Earth throughout which lava, debris, and gases erupt is known as a volcano. The crescent landform that was created over time by numerous eruptions is also included in the word.
Why do volcanoes form?Water from subducting plate can be forced up, off, and down into mantle wedge during subduction. As a result, the mantle's melting point decreases and it melts, forming magma. A volcano will be created when this magma rises and leaks into the crust.
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country music star going through gender reassignment.
a. true
b. false
It is false that a country music star goes through gender reassignment because its' totally there wish to reassign their gender or not.
The term "gender reassignment" applies to a transgender person and is a legal concept. Any person who has suggested, begun, or finished a procedure to switch their sex is included. SRS is not morally or scientifically suitable since it contravenes fundamental moral and legal norms.
Preferably, compositions are given a music star emblem based on how well they performed. The popularity of the song and whether it is an often famous song on a record are the main factors here. The tracks on a record that are performed the most frequently are typically given stars.
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In this lab, you will simulate birds with three different beaks. After watching the birds feed, you will remove fruit to simulate a change in the environment. What question are you answering by doing this observation? Write it by filling in the blanks below.
What is the effect of…
_______
…on…
_____
The question that is being answered by doing this observation is:
What is the effect of a change in the environment on the feeding ability of birds with different beaks?
What is an observation in science?An observation is any information gathered during an experiment.
Through our senses, we can learn about the outside world, and we can also record information using tools and instruments from science.
An observation in science aims to answer a particular question or inquiry through experiments.
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8. Energy is transferred in several different ways during the
process of cellular respiration. Give two examples of ways
that energy is transferred during this process.
During cellular respiration glucose and oxygen are converted into carbon dioxide and water and the energy is transferred to ATP.
How energy is transferred during the process of cellular respiration?It is possible to catch and put to use the energy released when electrons transition to a lower-energy state. During cellular respiration, electrons from glucose steadily proceed down the electron transport chain in the direction of oxygen, passing through states with progressively lower energies and releasing energy at each stage. Both aerobic (using oxygen) and anaerobic cellular respiration are possible (without oxygen). When glucose and oxygen interact during aerobic cellular respiration, ATP is created that the cell can use. As byproducts, water and carbon dioxide are produced. The most fundamental type of carbohydrate, monosaccharide glucose, can be mixed with oxygen, for instance. Potential energy is released when the oxygen receives the high-energy electrons that are present in the glucose.To learn more about cellular respiration refer to:
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A nursing home administrator sets up programs to give preferential treatment for minorities. This is being done because the current workforce at the nursing home is predominately white. What is the term for this policy?
Affirmative action is the term that is described in the given policy.
Affirmative action is a collection of policies intended to end illegal discrimination against candidates, address the effects of such discrimination in the past, and foresee future instances of such discrimination. Affirmative action plans for minorities and women, which include statistical and narrative components, and for veterans and people with disabilities, which only include a narrative section, are both necessary.The goal of affirmative action is to advance societal equality by giving socioeconomically disadvantaged individuals preferential treatment. These individuals frequently suffer disadvantages as a result of historical events like oppression or slavery.To know more about affirmative action here
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A compound has a molecular weight of 112. 124 atomic mass units and the empirical formula c3h4o. What is the molecular formula of the compound? use the periodic table to help you.
The molecular formula of the compound (has a molecular weight of 112. 124 atomic mass units and the empirical formula C₃H₄O = C₆H₈O₂.
A compound's molecular formula describes the composition and number of entities present in that molecule.
The following steps are involved in the prediction of a molecular formula:
Determine the molar mass :
C₃H₄O molar mass = 3 (12) + 4 (1) + 16
= 56
Divide the given mass by the empirical formula's calculated mass:
(112 x 124)/56
= 2
Then, multiplying the subscripts of the given empirical formula by this whole number yields:
The molecular formula is (C₃H₄O)₂= C₆H₈O₂.
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Which of the following causes point mutation?A. DeletionB. InversionC. Both A and BD. None of the above
Point mutation occurs when a single nucleotide is deleted. Inversion is a type of chromosomal mutation in which a chromosomal region is reversed end to end. Correct option (a).
A mutation is a change in the nucleic acid sequence of an organism's, virus's, or extrachromosomal DNA's genome.
Viral genomes can be made up of either DNA or RNA. Mutations occur as a result of errors in DNA or viral replication, mitosis, or meiosis, or other types of DNA damage (such as pyrimidine dimers caused by ultraviolet radiation exposure), which may then undergo error-prone repair (especially microhomology-mediated end joining), cause an error during other forms of repair or cause an error during replication (translesion synthesis).
Mutations can also occur as a result of the insertion or deletion of DNA segments caused by mobile genetic elements.
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What is the role of triglycerides in the human body?
O Triglycerides send important chemical messages from one part of the body to another.
O Triglycerides serve an important role in the structure of cell membranes.
O Triglycerides store fatty acids, a major source of energy for cells.
O Triglycerides form a protective coating on outer body surfaces, making them waterproof.
The function of triglycerides inside the human body is to store fatty acids, which are a significant energy source for cells.
What does a high triglyceride level mean?Obesity and metabolic syndrome, a group of diseases marked by excess body fat around the hips, high blood pressure, high blood sugar, high blood sugar, and abnormal cholesterol levels, are two conditions which it increase the likelihood of heart disease and stroke and are frequently accompanied by high triglycerides.
What triglyceride level is dangerous?Heart disease risk may increase at levels over 150mg/dl. A risk factor in metabolic syndrome is a triglyceride ratio of 150 mg/dL or above.
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Predict the two possible outcomes if temperature or ph were changed within the molecular control system of cell division.
Answer:
The mitosis process will either be decreased or increased depending on how the temperature changes
Explanation:
which diagram shows the correct positions of Earth as it orbits the sun
Answer: The one with a burrito
Explanation:
Meow
HELP PLSS I AM TOO NON-SMART FOR THIS (20 points)
Where do we get the energy to turn ADP into ATP?
a
From the air we breathe
b
From the sun.
c
From the water we drink.
d
From the food we eat.
Answer: d. from the food we eat
Explanation:
ADP is turned into ATP (energy) when our body has excess energy after we break down the food we have consumed. It stores the excess energy by reattaching a free phosphate molecule to ADP, making it ATP (energy) again.
Of all the types of chromosomal mutations you have studied in this lesson, only one does not lose the genetic information of the chromosome. Which one is it? Explain the impact of this mutation?
Answer:
In biology, a chromosomal mutation is the mutation of the chromosomal segments of the DNA strands. This can occur when the number of chromosomes or chromosome sets (ploidy) increases or decreases in a genome as well as when changes in chromosomes structure occur. Irregularities or accidents when cell division happens as well as during chromosomal crossing over or fertilization can all be causes of chromosomal mutation.
All types of chromosomes can undergo chromosomal mutation. Chromosomal mutation examples include chromosome deletion, duplication, inversion, and translation. These are known to cause different kinds of genetic and chromosomal mutation diseases.
For instance, chromosomal mutations on chromosome 4 have been investigated and proven to be the source of numerous genetic disorders and even cancer in humans. This includes conditions like narcolepsy and Parkinson’s disease.
What “virus-specific” structures and enzymes could be exploited by potential drugs that we could take?
The “virus-specific” structures and enzymes that could be exploited by potential drugs that we could take are Envelope proteins, Reverse transcriptase, Protease, RNA polymerase, Hemagglutinin Fusion inhibitors, etc.
What are virus-specific structures and enzymes?This refers to some virus-specific structures and enzymes that could be targeted by potential drugs.
Some examples include:
Envelope proteins: Many viruses, such as HIV and influenza, have an envelope that surrounds their genetic material. Drugs that target these envelope proteins can prevent the virus from entering host cells and reproducing.Reverse transcriptase: Some viruses, such as HIV, use an enzyme called reverse transcriptase to convert their RNA genome into DNA. Drugs that inhibit reverse transcriptase can prevent the virus from replicating.Protease: Many viruses, such as HIV and Hepatitis C, use an enzyme called protease to cleave viral proteins and release new viral particles. Drugs that inhibit protease can prevent the virus from replicating.RNA polymerase: Some viruses, such as coronaviruses, use an enzyme called RNA polymerase to replicate their genetic material. Drugs that inhibit RNA polymerase can prevent the virus from replicating.Hemagglutinin: Some viruses, such as the influenza virus, have a protein called hemagglutinin which allows the virus to attach to host cells. Drugs that target this protein can prevent the virus from entering host cells and reproducing.Fusion inhibitors: Some viruses, such as the coronaviruses, use a protein called spike protein to fuse with host cells, by targeting this protein drugs can prevent the virus from entering host cells and reproducing.Note: Many of these drugs are in the development stage and many of them are not yet approved for human use.
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How many oxygen atoms are in two molecules?
Two oxygen molecules would contain four oxygen atoms.
Chemical elements are substances that only contain one kind of atom, such as oxygen. Since oxygen has an atomic number of 8 and the official chemical symbol O, an oxygen atom has eight protons in its nucleus. At room temperature, oxygen is a gas that has no flavor, color, or odor. In nature, oxygen exists as a molecule. To create dioxygen, or O₂, two oxygen atoms must make a covalent double bond with one another.
in one molecule of oxygen there are 2 oxygen atoms, so there would be Two oxygen molecules would contain four oxygen atoms.
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Charles darwin originally published the idea that all species have descended over time from common ancestors. This idea is known as evolution. Evolution is best categorized as.
Evolution is best categorized as a scientific theory supported by evidence.
The process of evolution resulted in the emergence of many species of living things in this world. All living things have different species and these differences can be proof that the theory of evolution occurs in nature.
Darwin's theory of evolution is more accepted than Lamarck's theory of evolution because there is evidence of evolution that supports Darwin's theory, such as the geographic distribution of species (biogeography), the fossil record, comparative anatomy, and molecular biology research.
Some things that can be used as clues or evidence of the evolutionary process include fossils, anatomical comparisons, embryological comparisons, biochemical comparisons, remaining organs (vestigial organs), and domestication.
From the description above, evolution is best categorized as a scientific theory that is supported by evidence.
This question is a multiple choice:
A. a scientific hypothesis that has not been researched.
B. an unproven observation about a small number of organisms.
C. a scientific fact that has not been modified since Darwin's time.
D. a scientific theory that is supported by evidence.
The correct answer is D.
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Classify the statements as describing a gene, a chromosome, or a genome.
Gene Chromosome
Genome Each organism has one Determines a particular characteristic of an organism Describes the collection of all of the replicable genetic material of a cell or organism Codes for a specific Is the largest Is a linear or protein or RNA molecule in the cell circular molecule Encodes all the heritable Is a unit of DNA carrying genetic traits of an organism information encoded in genes Is a contiguous Functions to package, organize, Acts as the basic piece of DNA and regulate access to DNA unit of heredity May include plasmids
Classification of statements according to whether they describe a gene, a chromosome or a genome:
Determines a particular characteristic of an organism. Correct answer: gene. is a continguous unit of DNA carrying genetic information encoded in genes. Correct answer: chromosomemay include plasmids. Correct answer: geneis a linear or circular molecule. Correct answer: genomeis the largest molecule in the cell. Correct answer: genomeeach organism has one. Correct answer: genomeencodes a specific RNA or protein. Correct answer: genedescribes the collection of all of the replicable genetic material of a cell or organism. Correct answer: genomefunctions to package, organize and regulate access to DNA. Correct answer: chromosomecomprises the physical unit that results in gene linkage. Correct answer: chromosomeencodes all the heritable traits of an organism. Correct answer: genomects as the basic unit of heredity. Correct answer: geneA gene is a unit of genetic information composed of a segment of DNA or RNA that codes for a particular protein or trait.
A chromosome is a structure composed of DNA and proteins that carries genetic information in the form of genes.
A genome is the complete set of genetic information for an organism, including all of its genes.
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When does DNA replication occur.
Answer:
S Phase
Explanation:
DNA replication occurs during the S Phase of cell division and they must replicate before they can divide.
A student made a model of an ecosystem in an aquarium.
The student used potting soil to represent land, water to
represent a pond, and a lamp to represent the Sun.
One limitation of the model is that it does not represent how living things
interact with the nonliving parts of an ecosystem. Which way of refining the model would best address this limitation?
A. Adding a fan that can circulate the air
B. Placing some aquatic plants in the water
C. Putting a timer on the lamp so that it turns off at night
D. Adding a water pump that can circulate the water
Placing some aquatic plants in the water is the refining the model would best address this limitation.
What is Ecosystem?An ecosystem is a region where different species of plants, animals, and other organisms coexist in harmony with the environment, including the climate and geography.
An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems.
Every component of an ecosystem is directly or indirectly dependent upon every other component. An ecosystem's temperature changes frequently have an impact on the types of plants that may flourish there, for example.
Therefore, Placing some aquatic plants in the water is the refining the model would best address this limitation.
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Which greenhouse gas is released from burning fossil fuels?
Answer: Carbon Dioxide
Explanation:
Carbon dioxide is the greenhouse gas which is released from burning fossil fuels.
Greenhouse gases are gases capable of absorbing infrared light and trapping heat in our atmosphere. Greenhouse gases cause the greenhouse effect or global warming.
The greenhouse gases are so named because their action is comparable to how glass walls trap heat inside a greenhouse. Carbon dioxide is the principal greenhouse gas generated by the combustion of fossil fuels, but tiny quantities of nitrous oxide and methane are also emitted.
Fossil fuels consist of coal, oil, and gas. Hydrocarbon molecules serve as the foundation for these fuels. As a result, when these fuels are burned, carbon dioxide is released. Some fossil fuels contain components that emit nitrous oxide or methane.
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what are the limitations to the Earth’s core?
Since the temperature and pressure significantly rise as we travel more inside the planet, we are unable to reach the centre of it. Furthermore, there is currently no technology that can penetrate the depths of the earth.
The gravity train is almost impossible in actuality since no material is known to be able to resist the temperature or pressure (about 3 million atmospheres) at the Earth's core.
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Explain how just four nitrogen bases are able to communicate such a diverse instructions
Four nitrogen bases are able to communicate such diverse instructions because they are ordered in specific linear sequences that determine the expression of all proteins observed in an organism.
What are the four nitrogen bases in the nucleotides of the DNA sequence?The four nitrogen bases in the nucleotides of the DNA sequence are the types of bases to form the four types of nucleotides, which corresponds to Adenine or A, Guanine or G, Cytisine or C and Thymine or T. The linear order of nucleotides in the DNA sequence dictates the instructions to generate virtually any type of protein in the organisms.
Therefore, with this data, we can see that the four nitrogen bases in the nucleotides of the DNA sequence are required to form all types of proteins which depends on the linear order of nucleotides in DNA.
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What feedback exists between the evolution of life and the formation of soil
when a seed has a different germination rate when planted in soil conditioned by its own genotype ('home') than the same soil conditioned with another genotype ('away').
What is the relationship between soil and life?The soil is used by humans and other living things to break down these waste products into new resources. Other living organisms use these new materials. When a living thing perishes, its remains fall to the ground where biological and chemical processes transform them into fresh materials and sustenance for other living things. In addition to giving plants and trees nourishment, water, and minerals, soil also holds carbon and is home to countless numbers of insects, rodents, bacteria, and other microorganisms. Plants are consumed by animals, who then leave behind waste and finally die, adding to the soil. The soil starts to shift as a result.To learn more about soil refer to:
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radioactive decay → heat circulation → plate movement → ________
Slow mantle currents generated by the Earth's interior heat are what move plates. Heat that remains from Earth's origin as well as heat produced by the radioactive decay of atoms inside the planet.
What does the heat produced by radioactive materials decay look like?The heat produced by radioactive decay is referred to as decay heat. This heat is a result of radiation's impact on the materials: gamma, beta, and alpha radiation's energy is transformed into atoms' thermal motion.
What does radioactive decay mean?Ionizing radiation is a health risk because it can harm the atoms in living things, damaging tissue and the DNA in genes. the atomic fragments.
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Is RR heterozygous dominant?
The heterozygous genotype (Rr) has the dominant round seed shape as its recessive allele (r) is masked in the phenotype.
Gene traitsgenes have the following characteristics:
1. Contains genetic information.
2. Each gene has different tasks and functions.
3. At the time of division of mitosis and meiosis can hold duplication.
4. Determined by the arrangement of nitrogen base combinations.
5. As a particle contained in the chromosome.
Gene symbolReporting from various sources, here are the gene symbols of each type:
1. Dominant Gene
Dominant genes are genes that can mask the expression of other genes, so that the traits that are carried appear in individuals. Dominant genes are represented by a capital letter, such as A and W.
2. Recessive Genes
A recessive gene is a gene that is covered by a dominant gene so that the trait it carries does not appear in its offspring. Recessive genes are written with lowercase letters, for example a and w.
3. Heterozygous Gene
Heterozygous gene is a fusion of two genes from sperm and egg cells. Heterozygous genes are symbolized by two letters consisting of one capital letter and one lowercase letter, for example Aa and Ww.
4. Homozygous Dominant Gene
Homozygous dominant gene is a combination of two dominant genes from male sex cells and female sex cells. Dominant homozygous genes are represented by two capital letters, such as AA and WW.
5. Recessive Homozygous Gene
Recessive homozygous gene is the result of the fusion of two recessive genes from the two sex cells. The symbol for a homozygous recessive gene is two lowercase letters, for example aa and ww.
6. Homologous Chromosomes
Homologous chromosomes are chromosomes from the female parent that are similar in shape to the chromosomes from the male parent.
7. Phenotype
Phenotypes are hereditary traits that can be seen directly. Examples are high, low, color, and shape.
8. Genotype
Genotypes are hereditary traits that cannot be seen. Like the symbols AA, Aa, and aa.
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A plant that grows towards light shows which of the following
A plant that grows toward light shows a mechanism known as Phototropism.
What is Phototropism?Phototropism may be defined as the tropic movement of plants in response to light. In this case, light functions as a stimulus, and the plant expresses growth movement in the direction of the stimulus, that is light. Phototropism is exhibited due to auxin which is a plant growth hormone.
Basically, the shoot of plants exhibits positive phototropism as it grows in the direction of light. It is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism.
Therefore, a plant that grows toward light shows a mechanism known as Phototropism.
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describe the role of chlorophylls in the biochemical pathways of photosynthesis
The role of chlorophyll in the biochemical pathway of photosynthesis is to absorb solar energy, trigger CO2 fixation to produce carbohydrates, and provide energy for the ecosystem as a whole.
What is chlorophyll?Chlorophyll is called the green substance of leaves. Chlorophyll molecules are able to absorb red, blue, and violet light. Until it reflects the yellowish-green color that humans often see. Chlorophyll is needed by the body for photosynthesis in addition to water, carbon dioxide, and light.
Chlorophyll is located in plant chloroplasts, which are tiny structures in plant cells. This is where photosynthesis takes place. The job of chlorophyll in plants is to absorb light, which is usually sunlight. The energy absorbed from light is transferred to two types of energy storage molecules.
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