Sickle cell anemia is known to run in a family. A pedigree chart for this family is shown below.
The parents are shown at the top and from left to right appear as a half-shaded circle next to a half-shaded square. The two are connected by a straight line. Below the parent pair is a vertical straight line connecting to the next row of circles and squares which are the offspring. Starting from left an unshaded square, half-shaded circle, another half-shaded circle, and a completely shaded square are shown. All of these are also connected by a horizontal straight line.
What percentage of the offspring are carriers of the disease but do not have it?
0%
25%
50%
100%
Answers
Answer:
50 is the answer
Explanation:
Brainliest
Answer:
I Believe Its 25%
Explanation:
Related Questions
The influx of which ion is directly responsible for triggering the release of acetylcholine from a motor neuron?.
Answers
Answer:
The influx of which ion is directly responsible for triggering the release of acetylcholine from a motor neuron? When an action potential from a neuron reaches an axon terminal, voltage-gated calcium channels open. The influx of calcium triggers exocytosis of acetylcholine.
Which of the following is required for photosynthesis to take place? a. sugar b. oxygen c. atp d. water please select the best answer from the choices provided a b c d
Answers
The answer will be :
D. water.
Water, is required for photosynthesis to take place.
How does photosynthesis work in plants?Photosynthesis is the process of creating sugar and oxygen from carbon dioxide, water and sunlight. It happens through a long series of chemical reactions.
But it can be outlined like this Carbon dioxide, water and light go in. Glucose, water and oxygen come out.
Thus, Water, is required for photosynthesis to take place.
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hello people ~
Potable water is
(a) ocean water
(b) groundwater at selected places
(c) river water
(d) ponds water
Answers
Answer:
Ground water
Explanation:
Potable water refers to drinkable water or water which is safe to drink
Ocean water is salty not drinkableRiver water may be impurePonds water may be dusty so impureOption B is correct
Gregory is doing his experiment for the science fair. The above table shows the data he collected. Based on the table, what is the best description of what Gregory wanted to know?
Answers
What seasonal change can be seen in Florida birds during the fall?
A. Birds begin to store food and go dormant
B. Birds begin to store food and hibernate
C. Birds migrate further north to colder locations
D. Birds migrate further south to warmer locations
Answers
The answer will be:
D. Birds migrate further south to warmer location.
Answer:
B birds begin to store food and hibernate
Explain the environmental benefits of recycling paper products.
No links please
Answers
Answer:
Paper recycling saves natural resources, saves energy, reduces carbon dioxide emissions, and keeps landfills free for other types of waste that cannot be recycled. Recycling
1 ton of paper saves 17 trees, 7,000 gallons of water, 380 gallons of oil, 3.3 cubic feet of landfill space, and 4,000 kilowatts of energy. Greenhouse gas emissions Carbon equivalent (MTCE).
Explanation:
suggest two steps to save water
Answers
Answer:
There are a few easy things you can do at home to help relieve the strain on your local water supply while also saving money. While brushing your teeth, turn off the faucet. When you have a full load, just use the washing machine and dishwasher. Use a low-flow shower head and aerators on the faucets. Repair any leaks.
Explanation:
Answer:
use water carefuly.
use when needed.
Explanation:
In these analyses, why are segments of chromosomes (haplotypes) rather than individual strs used to identify genetic relationships?
Answers
The type of analysis is not specified here, but haplotypes are used to identify phylogenetic and phylogeographic relationships.
Whta are haplotypes?The haplotypes are linear sequences of nucleotides whose order can be used to determine evolutionary relationships.
The haplotypes are very useful in phylogeny and phylogeography to study the features of species.
The term haplotype is broader than genetic sequence because a haplotype is more informative (a priori).
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The segments of chromosomes (Haplotypes) are used to identify genetic relationship because it carries almost all the information, properties, and characteristics of the individual genome.
What do you mean by Genetic relationship?Genetic relationships may be defined as the similarities in the sequence of the genome between the organisms of two or more species.
Haplotypes are used to identify the evolutionary relationships between the species. It also analyzes the various features that a species possess in its genome.
Therefore, it is well described above.
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What is the renewability of nuclear power?
It is a nonrenewable energy source.
It can use the same fuel cells repeatedly.
It is an unlimited, clean energy source.
It can be replenished, but not by fusion.
Answers
Answer: A
Explanation:
Answer: It can be replenished, but not by fusion.
Explanation:
If anyone has read the book “When no one is watching”, may someone tell me the theme of the book? I need this for a report since I’m unsure what the theme is
Answers
Answer: The Theme of the book "When no one is watching" is
questioning of reality
Explanation: nothing
For this assignment, you will develop a model to describe the cycling of matter and the flow of energy
among living and nonliving parts of an ecosystem. This project includes both an individual and a group
part. On your own, you will research an organism that is assigned to you. In your group, you will combine
your organism with the organisms researched by other students to create a food web. Together, you will
write two short paragraphs explaining how energy and matter move through the food web.
Answers
Answer:
All I can tell you is when energy is moves through the food web it gets divided by 10
plant energy =1 0,000 (example)
that plant gets eaten by a small animal
small animal's energy gained from the plant = 1,000
a large animal then eats the smaller one
large animal's energy gained from the small animal = 100
Explanation:
I am sorry you will have to write your two short paragraphs on your own.
I don't want you to get in trouble for plagiarism.
I'm super sorry I hope this helped a bit!
In which situation would calcium enter the cell through active transport?
O The cell is 20% calcium, and the cell's environment is 80% calcium.
O The cell is 50% calcium, and the cell's environment is 50% calcium.
O The cell is 40% calcium, and the cell's environment is 60% calcium.
O The cell is 80% calcium, and the cell's environment is 20% calcium.
Answers
The cell is 80% calcium, and the cell's environment is 20% calcium for active transport to take place.
What is Active transport?
This is defined as the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration against the concentration gradient.
Option D involves movement of calcium into the cell from the environment which has a lower concentration to the cell with a higher concentration which depicts active transport .
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What are the two places in a cell where i could find dna?
Answers
Answer:
Cell nucleus and mitochondria
Explanation:
brainliest please
In photosynthesis, what type of energy do we end up with?
I need the answers asap
I will mark it
Answers
Explanation:
Adenosine triphosphate energy
Answer:
In photosynthesis, light energy is converted to chemical energy.
Which of the following happened partly in response the fire on the Cuyahoga River? Select two correct answers.
A)Rachel Carson wrote silent spring to detail the damage done by the fire. B)The location of the fire was declared superfund site. C)Congress passed the Clean Water Act into law. D)The national environmental policy act was passed, which led to the formation of the EPA
Answers
Answer:
- Congress passed the Clean Water Act into law.
- The National Environmental Policy Act was passed, which led to the formation of the EPA.
Explanation:
The following happened partly in response the fire on the Cuyahoga River are Congress passed the Clean Water Act into law. D)The national environmental policy act was passed, which led to the formation of the EPA.
Which river was caught on the fire?When Lake Erie – or extra precisely the Cuyahoga River which flows into Lake Erie – stuck hearthplace in 1969, it ignited a firestorm of public outrage over the indiscriminate dumping of sewage and commercial chemical compounds into the Great Lakes.
The 1969 river hearthplace stimulated the advent of the EPA and Clean Water Act. Catch up at the growing fire making headlines. Fish stuck withinside the Cuyahoga River, well-known for catching hearthplace withinside the Sixties at the moment are secure to eat, says the Ohio Environmental Protection Agency.
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write all name of this figure.
Answers
In the second figure kindly ignore the tubectomy part.
At room temperature, dry ice (carbon dioxide, CO2) changes directly from solid to gas. What happens as the solid dry ice turns into carbon dioxide gas?
A.CO2 molecules lose mass to become gas.
B.CO2 molecules release heat energy to the air.
C.CO2 molecules absorb heat energy from the air.
D.CO2 molecules react with oxygen and become gas.
Answers
Answer:
A
Explanation:
Carbon dioxide is a gas at room temperature.
When the solid dry ice turns into carbon dioxide gas, the carbon dioxide molecules release heat energy into the air. Thus, the correct option for this question is B.
What happens when the solid dry ice turns into carbon dioxide gas?When the solid dry ice turns into carbon dioxide gas, the process of sublimation occurs. This process of sublimation significantly converts the dry ice into a gas in the form of water vapor.
It may be revealed that dry ice is known for carbon dioxide in its solid state of matter. The unique property of this dry ice is that it ultimately turns from a solid to gas at room temperature. This is because it provokes water vapor in the air to be condensed into droplets of water thus constructing a fog appearance.
Therefore, the molecules of carbon dioxide release heat energy into the air. Thus, the correct option for this question is B.
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why argon is called inert element?
Answers
Answer:
Helium neon and Argon are called inert gases are noble gas because they have complete its duplet as well as Octate. and no other element like Helium neon and Argon complete its octate and duplete. in the 18th period all element are inert. Which gas does not exist in air?
Explanation:
Answer:
The outermost (valence) shell of argon has eight electrons, making it exceedingly stable and, thus, chemically inert.
It is a cold winter day in Boston with a temperature of −7° C (19° F) and forecast of 3 cm of snow. How do the weather conditions determine the possibility of snow?
A) It is a cold winter day, and it snows every day in the winter.
B) It is winter, and the temperature is well above freezing, causing snow.
C) It is winter, and the temperature is well below freezing, making snow likely.
D) Snow is expected to fall at temperatures at or above freezing.
Answers
Answer:
The answer to this question would be D!
Answer:
C
Explanation:
C
snow is a form of water with freezing point 0 degrees
If you soak seeds in water to soften them, and then cut them in half and stain them with iodine, most of the inside of the seed will change color, turning a purplish-black. What substance is the iodine reacting with to cause this color change?
Answers
Answer:
Starch
Explanation:
Starch consists of amylopectin and amylose, and is found in plants. In the presence of iodine, amylose starch turns a dark purple or blue color, due to the absorption of different wavelengths of light than before.
When the skin comes in contact with an irritant, receptors in the skin send signals to the spinal cord. The signal is then sent to the brain for processing, and the individual begins to scratch the affected area. Which two systems are most likely interacting when a person experiences itching caused by a skin irritant?.
Answers
Peripheral nervous system and Central nervous system are most likely interacting when a person experiences itching caused by a skin irritant.
What is Central nervous system?This is the control center of the nervous system and comprises of the brain and spinal cord.
The Peripheral nervous system comprises of sense organs such as the skin. The receptors in the skin sending signals to the spinal cord mean the interaction between Peripheral nervous system and Central nervous system.
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The transfer of genes from parents to their offspring is known as *
-differentiation
-heredity
-immunity
-evolution
Answers
Answer:
Heredity
Explanation:
The definition of hereditary is biological inheritance, or passing down traits.
The amount of food that can be produced in an given area is called
Answers
Food production is the quantity of food produced, processed, prepared in an area.
What is Food production area?Food production area refer to a geographical location where food products or their ingredients for human consumption are prepared, processed, repacked, handled or manufactured.
The food produced are localised in that area and can be exported to other place.
The food production area is normally known for a specific food manufactured in that area.
Therefore, Food production is the quantity of food produced in an area
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Which of the following describes molusca?
A. a process in which molecules pass through a semi-permeable membrane from a less concentrated solution to a more concentrated solution
B. the phylum name for organisms that have a relatively simple body structure, which is evidence of their place in the early evolution of life
C. relationships in which plants or animals of different species may be dependent on one another for survival
D. a porous marine invertebrate who pulls water through its soft body in order to obtain oxygen and nutrition
Answers
Answer:
I belive that the answer is B
Explanation:
a and d are definately not it. Molusca sounds like a phylum name to me. Sounds very similar to mollusks.
You are looking at a specimen under the microscope, what would you use to adjust the light being focused in on the slide?.
Answers
Condenser Lens is located under the stage which is responsible for focusing the light on the specimen.
What is Condenser Lens?The condenser lens collects light from sources and redirects the light beam so that it falls on the projector's lens system.
So we can conclude that condenser Lens is located under the stage which is responsible for focusing the light on the specimen.
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Sensory transduction of light/dark information in the vertebrate retina is accomplished by.
Answers
Answer:
Rods and cones
Explanation:
Quizlet
A. Identify the letter of the image that does NOT represent aseual reproduction. B. Explain how you can tell that this image is not aseual reproduction.
Answers
Answer:
D
Explanation:
Aseual reproduction is a type of reproduction in which new organisms are reproduce from single parent without production of gametes. But in D their is fusion of gametes (egg and sperm) therefore it explains to us that it is not an aseual reproduction.
Document 6: the geography of japan sample response: both england and japan were island nations and, as a result, were easily defendable. they both had many ports and good access to the ocean. both were commercial powers and had strong navies. which of these ideas did you include in your response? select all that apply. both were island nations. both had strong navies. both were strong commercially. both were physically small. both had many ports and good access to the ocean and trade.
Answers
Both were island nations and had strong navies.
Both were strong commercially and had many ports and good access to the ocean and trade.
Geography of England and JapanBoth England and Japan were island nations because both are surrounded by water. Both had strong navies due to advance in technology.
Both were strong commercially and economically due to production of large number of goods which make their economies very strong. Both countries had many ports and good access to the ocean and trade which make them a strong economic power.
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Answer:
A,C,E or 1,3,5
Explanation:
Which abiotic component of its ecosystem did the owl in the picture above use to build a safe nest?
OA. air
OB. rocks
OC. trees
Answers
Answer:
The answer is rocks
Explanation:
Abiotic factors are nonliving, and biotic factors are living or once living. The tree twigs were once living, and the air wasn't used, so the rocks are the only answer left.
Hope this helps!
Biologists tell us that life on earth took billions of years to evolve into astronomy students and other examples of intelligent life. If we want to search for planets with intelligent life-forms that evolved over the same period of time that we did, what sorts of stars should we not bother searching around?.
Answers
The types of stars that we should not search for life around the Universe are O and B type stars.
What is a star?A star is a celestial body capable of producing huge amounts of heat and radiation in the form of light.
An O-type star (spectral class O) is a blue and/or white star that is characterized to be very hot and brilliant.
B-type stars are also luminous and they can be blue, but they can be differentiated by O-type stars by their spectra.
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