How many bivalents are formed in a cell with 20 chromosomes at the beginning of meiosis i?.

Answers

Answer 1
There are 10 bivalents formed in a cell with 20 chromosomes at the beginning of meiosis I

Related Questions

Explain a chromosome deletion and the effects it can have on the body

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Chromosome Deletion occurs when a piece or section of chromosomal material is missing. Some effects it can have on the body are cognital anomalies, intellectual and physically disability.

pls help and thank you ​

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Answer:

image is dim due to it being in the blind spot

(science)
18 point!
i'll give 5 star,1 thank who do all of this question THANK YOU!!!

Answers

Answer:

gravitational

sun 274m/s²

mecury - 3.7 m/s²

earth - 9.807 m/s²

Mars -3.721m/s²

Two starts are visible from Earth ,Star A “appears” brighter than shad B , but their luminosity ( absolute magnitude ) is the same .
Why does star A appear brighter than B ?

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This could be because star A is closer to Earth than star B is, making it appear brighter.

Which type of nutrient functions primarily as an energy source for cells?.

Answers

Answer:

The answer is Carbohydrates.

Explanation:

They are one of the most important nutrient.

-Justin:)

A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile

(a) is a better conductor of heat than the wooden tile.

(b) is polished while wooden tile is not polished.

(c) reflects more heat than wooden tile.

(d) is a poor conductor of heat than the wooden tile

Answers

Is a poor conductor of heat than the wooden tile

Which factors would most likely affect the

weather on a small, flat island in the ocean?

Select all that apply.

A. The formation of dry air masses

B. Ocean surface currents

C. The formation of humid air masses

D. The rain-shadow effect

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Answer:

B. or C.

Explanation:

im pretty sure! I'm in a class like this and I have been studying air masses and air pressure alot!

There was a change in the environment between generations 10 and 30. the change likely .

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These adjustments are in all likelihood genetic mutations evolution is the technique of alternating all existing paperwork from one era to the next and evolutionary biology research how this evolution takes place.

Every era of organisms inherits trends owned via way of means of their mother and father via genes. Changes (known as mutations) in this gene will new trends withinside the offspring of an organism. In an organism's populace, a few trends become greater common, even as others will disappear.This technique is known as herbal selection. The profits of greater offspring than the variety of mother and father at the side of the inheritance.

What are heredity mutations?

Hereditary mutations encompass cystic fibrosis, hemophilia, and sickle mobileular disease. Other mutations can occur on their very own at some stage in a person's existence. These are known as sporadic, spontaneous, or new mutations.

Thus it is well explained.

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Answer:

✔ favored trait A

Explanation:

An organism has two different possible traits, A and B. A graph of the population is shown right. Which of the following statements is true about Trait B? Check all that apply.

It decreased in frequency over time.

It became extinct.

It is carried on a recessive allele.

There was a change in the environment between generations 10 and 30. The change likely

✔ favored trait A.

In and agricultural area, heavy rainfall caused a flash flood. the topsoil from a freshly fertilized field washed into a local stream. as a result, the amount of nitrogen in the water drastically increased, causing algae to grow record levels and cover the surface of the stream. what effect did this bloom of algae have on the stream?

Answers

Answer:

The algae can release harmful chemicals known as "bio-toxins" that can contaminate the water and kill the organisms living in the ecosystem

Explanation:

Click the statement that best describes the role of each element in living organisms.

Nitrogen

Phosphorous

Sulfur

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Answer:

Problem one;
Nitrogen: is obtained by plants from bacteria in the soil.

Phosphorous: provides strength to bones and exoskeletons.

Sulfur: gives strength to the protein keratin.

Problem two:

Answer 1:
King James

Answer 2:
selling shares

Answer 3:
company shareholders

Answer 4:
the James River


Explanation:

Have a great rest of your day
#TheWizzer

Hello~

Jay is here to help you love

Answer: Nitrogen

Bye have a nice day love~

From: Jaybella~

Which of the following best describes the part of the blood composition that forms clots around wounds to prevent blood loss? Plasma Platelets White blood cells Red blood cells

Answers

Answer:

Platelets

Explanation:

Platelets are small pieces of dead blood calls that clump together to form a netting also known as a scab. These scabs stop bleeding, preventing every wound from being fatal and allowing the body time to heal.

Small fragments of dead blood cells called platelets collect together to form a netting, also known as a scab. Because these scabs stop the bleeding, no cut becomes fatal, and the body has time to heal. Thus, option B is correct.

What role of Platelets in clots around wounds?

Blood clotting is the main function of platelets, also known as thrombocytes. Compared to other blood cells, platelets are significantly smaller.

In order to stop bleeding, they congregate to create clumps or plugs in the hole of a vessel.After the wound has healed, your body will often spontaneously dissolve the blood clot.

Therefore, As soon as the vessel's margins are broken, platelets start to stick to them and release chemicals that draw in additional platelets. External bleeding stops as soon as a platelet plug forms.

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Which is a product of photosynthesis and a reactant of respiration?

Answers

The reactants of photosynthesis are carbon dioxide and water, which are the products of cellular respiration.

The american bison was once common in the prairie, but now wild bison are rare. Like cows, bison eat grass. What kind of organism is a bison?

Answers

Bison just like cows eat grass and are known as herbivores.

What are herbivores?

Herbivores are animals which eat grass or plants as their food.

Herbivores are primary consumers since they obtain their food from the primary producers, plants.

Examples of herbivores are cows, goats, and bisons.

Therefore, since bison eat grass just like cows, bosons are herbivores.

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If this is Personal to god I am sorry. Anyways, since, god was a human before, Who made the People with him And, Him?

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Speaking form a Christian perspective, God was never a human, he is a being. His son Jesus on the other hand is half human and half god. I personally believe that God was never made and he has always existed. It makes no sense to us humans since all we've ever known was that everything has a beginning and ending. I think there is more to our universe than we are capable of understanding.

A student wants to learn how plants and animals interact with one another in an ocean habitat. Which of Earth's spheres should the student study the most? the geosphere the atmosphere the hydrosphere the biosphere.

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A student wants to learn how plants and animals interact with one another in an ocean habitat thus he should learn about the biosphere as it helps in the determination of living organisms.

Organisms want water, and they take it in from assets including lakes, rivers, the sea, and aquifers. A deer that sips water from a circulate recycles that water with the aid of using exhaling and excreting waste. A fish takes in water from the sea and excretes water again out.

What plants and animals live in the ocean?

Seaweeds, algae, snails, crabs, small fishes, mollusks, worms, clams, and crustaceans stay withinside the coastal area. The pelagic area includes an open ocean further from the land and includes floor seaweeds, fish, whales, and dolphins.

Thus it is clear that the biosphere is the correct answer.

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Answer:

the answer above said D

Explanation:

e d g e 2020

Greg has been given a small sample of metal. His teacher has assigned him to identify what type of metal he was given.

Which of the following is a physical property that will help Greg to identify the metal most accurately?
A.
ability to rust
B.
density
C.
ability to burn
D.
color

Answers

A ability to rust bc it just it

1. Is sneezing and coughing on clothes better than using tissue paper?
2. Do disinfect wipes work effectively?

Answers

Answer:

1. no because the bacteria will stik on your clothes

2. yeah

Lily is doing a science experiment with a substance in a sealed jar. At first, the substance’s molecules are moving around each other. What will happen to Lily’s substance if she transfers energy into the substance and causes a phase change? After the phase change, the substance’s molecules will move . . . *
1 point
a. faster, and the substance will be a liquid.
b. faster, and the substance will be a gas.
c. slower, and the substance will be a solid.
d. slower, and the substance will be a liquid.

Answers

Answer:

I think is B because when you transfer a substance through energy the practicals increase

B..Because Gas moves around Solid doesn’t it stiffens up but liquid just goes everywhere

Which organisms obtain energy from dead or decaying matter? Select two option

Answers

Answer:

Fungi and bacteria

Explanation:

What will be the PHENOTYPE of all the offspring

A: short hair
B: long hair
C: impossible to know

Answers

Answer: Hello again  The answer you clicked on is correct btw. Its long hair

Explanation:

The alleles would be Ll when the offspring is born and it would only be short hair if it was ll. Anything with capital “L” in it would be a long hair.

Choose an example of a protein that has quaternary structure

Answers

Answer:

hemoglobin, hemoglobin carries oxygen in the blood and it is made up of four subunits, two each of the α and β types.

Explanation:

Protein can have varying structures namely primary, secondary, tertiary and quaternary. An example of protein with a quaternary structure is hemoglobin.

What are different structures of protein?

The function of protein is completely dependent on its folding. Protein can be folded into many types.

The macromolecule protein can have the following structural classification:

Primary structure: It is a linear chain of amino acids.Secondary structure: The linear chain folds to form secondary structure.Tertiary structure: it involves further folding of protein chain.Quaternaty structure: it is the spatial arrangement of the folded protein.

Hemoglobin is one of the proteins that exhibits quaternary structure.

Thus, hemoglobin is an example of a protein that has quaternary structure.

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Help the Rossis understand how it is that Kai has NF1. Did he acquire it from them, or, was his case spontaneous? Explain your reasoning and, in your explanation, include the following terms or concepts, underline each: genotype phenotype, hom0zygous heterozygous inheritance alleles dominant recessive

Answers

Neurofibromatosis type 1, also know as NF1 is a genetic disorder that is caused by gene changes (also called mutations). The NF1 Gene is found on chromosome 17 and it carries the instructions to create a protein called NF! NF1 regulates mitosis, and works to prevent cells from growing and dividing in an uncontrolled way. The cells of individuals with NF1 divide out of control, leading to the creation of tumor. We have found that Kai has one mutation that was detected in the NF1 gene.

Kai may have NF1 Because of the parents may be a carrier The genes we inherit compose our genotype and determine the physical characteristics we possess, our phenotype. Alleles are important for the variations in which the trait can be expressed. The stronger allele is known as the dominant gene, and the weaker allele is known as the recessive gene. A phenotype is an individual's observable traits, such as height, eye color, and blood type.

The genetic contribution to the phenotype is called the genotype. The gene changes can be passed from parent to child, or they can happen on their own. If you have NF1 or NF2, your baby has a 50-percent chance (1 in 2) of inheriting it from you. heterozygous are carriers in recessive genetic disorders a person with recessive alleles but does not display trait, can pass the trait.

When there is two identical alleles of a particular gene that is h.o.m.ozygous and if there is two different alleles of a particular gene or genes, then that is heterozygous.

Neurofibromatosis kind 1, additionally recognise as NF1 is a genetic disease this is due to gene adjustments (additionally referred to as mutations).

The NF1 gene is discovered on chromosome 17 and it includes the commands to create a protein referred to as  NF1 regulates mitosis, and works to save you cells from developing and dividing in an out of control way. The cells of people with NF1 divide out of control, main to the advent of tumor. We have discovered that Kai has one mutation that changed into detected withinside the NF1 gene.Kai can also additionally have NF1 Because of the mother and father can be a provider the genes we inherit compose our genotype and decide the bodily traits we possess, our phenotype.

What is genetic contribution?

The genetic contribution to the phenotype is referred to as the genotype. The gene adjustments may be exceeded from determine to child, or they could occur on their own.

Thus it is clear.

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You select cell a1, hover the pointer over the cell border to reveal the move icon, then drag the cell to a new location. Which ribbon commands achieve the same result?.

Answers

Cut and paste is the ribbon command which will ensure the movement of a cell to a new location.

What is a Ribbon?

This is defined as a graphical control element in the form of a set of toolbars placed on several tabs.

Selecting a cell and moving it to a new location can also be done using the copy ad paste option which was why it was chosen as the most appropriate choice.

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According to the World Health Organization, persistent organic pollutants (POPs) are found in nearly all tested organism tissues and environmental samples. Which characteristic of POPs accounts for their presence in living tissues and in environmental samples?

Answers

Answer:

POPs are lipophilic, which means that they can be stored in fatty tissues for long periods of time.

Explanation:

What is the difference between a rock and a mineral?



PLEASE HELP ME MENTALLY AND PHYSICALLY!!!

Answers

Answer:

what they are classified as the chemicals in them and what category there in

Explanation:

A mineral is a solid, inorganic, naturally occurring, ordered arrangement of an element or compound that has a fairly specific composition.

Answer:

rocks are made up of different minerals

in geology a mineral is a naturally occuring chemical compound that can be found in the ground and mountains

Explanation:

example

schist is a rock

some of the minerals inside of schist are :

quartz , graphite and talc

quartz are used in watches

graphite are in pencils

talc used to be used for talcum baby powder

schist is found in the bedrock of new york and is very strong

thats why new york can have such tall buildings

wikipedia britannica bgsacuk opentextbcca massgov

What system plays a vital role in the existence of the human species?


What's the ans?

Answers

Answer:

The reproductive system.

Explanation:

Without the reproductive system, humans are not able to reproduce meaning the human species would go extinct. With the reproductive system, humans are able to create more humans, in this way humans do not go extinct.

What happens when plants don't get sunlight in space

Answers

Answer:

plants deprived of light will lose their colour and die

Explanation:

the lack of sunlight stunted photosynthesis and therefore the sprouts were not able to produce the chlorophyll needed to treat a green colour

Hello people ~
. In animals, juvenile phase is followed by,
(a) reproductive phase
(b) senescent phase
(c) old age
(d) vegetative phase.​

Answers

Answer:

(a) reproductive phase

Explanation:

The reproductive phase of an organism's life cycle is the stage at which it reaches reproductive maturity and is able to produce gametes and mate. Certain hormonal changes characterise this stage.

I am joyous to assist you at any time.

Answer:

Reproductive phase

Explanation:

Juvenile phase is followed by reproductive phase

In this phase the animals get the capability to reproduceThey start producing male and female gemates

At three minutes of all-out high-intensity exercise, ________ of the ATP is derived from aerobic sources.

Answers

Answer:

it is d

Explanation:

D) 60%

hope this helps..

How could we slow down or help stop ocean acidification?

Answers

Answer stop using plastic.

Explanation: Hello! My name is Hunter and I am a Marine Biologist within the state of Juno beach Fl, I work at a marine center located there and I teach people about Marine life animals and some ways to approach animals, and more. And here are some ways you can slow down or help stop ocean acidification.   If you care for marine animals take the decision to use glass, wooden, bamboo, or metal etensals. This helps instead of using plastic because most plastic ends up being in the ocean. studies show that about 150 animals die a day from inhaling plastic. Second, Most plastic has acid or a type of smell like the rubber gloves at the dentist, That smell and taste can be extremely toxic and deadly for marine life animals. Third, If you are a fisher or you work on a supply boat, Make sure your oil on the boat doesn't leak, Just because you call someone and they put a net around the oil doesn't mean animals can't get under the net. Animals in the ocean are free, If you're on or work on a supply boat, Make sure to check your oil frequently. Oil leaks happen more than you think if you are not experianced! I hope this helped and how WE can slow down or reduce acdification. Have a great rest of your day or night.

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