In Mendelian inheritance, why are only two phenotypes possible?

Answers

Answer 1

Answer:

Each characteristic Mendel investigated was controlled by one gene that had two possible alleles, one of which was completely dominant to the other. This resulted in just two possible phenotypes for each characteristic.

Explanation:

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Related Questions

Question 8: How would you describe the effect of different magnitudes of the same factor on the number of
individuals within a population? Use evidence from the graph and table (average values) to support your
answer.
THIS IS EDGE 22 please helppp

Answers

Answer:

I don't understand thequestion

Select all the correct answers. which two examples may be converted into fossil fuel after being buried under pressure for a long period of time? used cans plants animal waste electronic waste chemicals

Answers

Fossil fuel is carbon containing material formed by underground remains of dead plants and animals, including human extract and can be burned as fuels.

What is the procedure of changing fossils into fuel?

These fuels are found in earth's crust and contains carbon that burns to produce energy. Its examples can include coal, petroleum, oil, etc.

These fuels are created when the buried plants and animals are subjected to intense heat and pressure. It contains carbon and hydrogen, which burns to produce energy.

Thus, here plants and animal waste can be converted into fossils fuels, while electronic waste and used cans cannot.

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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.

How can gardeners and farmers add mineral nutrients to soil? (Select all that apply.)
They can heat the soil.
They can add compost to the soil.
They can add fertilizer to the soil.
They can water the soil.

Answers

Gardeners and farmers add mineral nutrients to soil by add compost and fertilizer to the soil.

How fertilizer enhance growth?

Fertilizer enhanced growth of the plant because it has nutrients which the plants need for their growth and development so we can conclude that gardeners and farmers add mineral nutrients to soil by add compost and fertilizer to the soil.

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What is a chromosome like in a city?

Answers

They contain all the information to run the cell and pass hereditary traits of the cell to new cella as does the city stores all page 4 biology analogy 4 records of the city and passes them on as the city grows

Calculate the amount of energy needed to increase 0. 500l of water from 25. 0c to 35. 0c

Answers

Answer:

yeet

Explanation:

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.

Which is not an impact on ecosystems during a drought?

A. Declines in surface water

B. Land subsidence

C. Increased organism population

D. Seawater intrusion

Answers

Answer:

c

it is because during drought there will be less water around us.so the no of animals decrease .

Which stage in the life cycle of a plant is represented in this picture?
a
Adult plant


b
Seed

c
Seedling

d
Sprout

Answers

Answer:

D) Sprout

Explanation:




The FBI agents are called "Hoovers," a reference to legendary top-G-man be

Edgar Hoover, but also a clever reference to a vacuum cleaner brand. There

are numerous shots of vacuums being used to gather hair, dead skin cells,

and nails. Why are these materials being collected?

To extract DNA and use DNA fingerprinting to identify who was at

the scene of a crime.

0 To clean up the crime scene because it was really dirty.

To view the specimen under a microscope to determine who was at

the scene of a crime.

O To extract proteins and use protein fingerprinting to identify who was

at the scene of a crime.

Answers

We can confirm that the materials being collected at the crime scene are used to extract DNA and use DNA fingerprinting to identify who was at the scene of the crime.

How does DNA help identify suspects?

This is due to the fact that the DNA of each individual is unique. Meaning that as long as the FBI has a database to compare it to, they can quickly identify whose DNA it is and confirm their presence at the crime scene.

Therefore, we can confirm that materials being collected at the crime scene are used to extract DNA and use DNA fingerprinting to identify who was at the scene of the crime.

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How is it that some people have different DNA than others? What exactly about the DNA is different?​

Answers

Answer:

Although DNA is univeral, people have different DNA from each other mainly because of mutations, which change our sequences (the order of the nucleotides)

Explanation:

1. Angiotensin II triggers the __________ of the intraglomerular mesangial cells, which results in a(an) __________ of the filtration surface area.

Answers

Angiotensin II triggers the contraction of the intraglomerular mesangial cells, which results in a decrease in the filtration surface area.

What is Angiotensin II?

Angiotensin II is a peptide hormone capable of narrowing the blood vessels, which is fundamental in many physiological processes.

Angiotensin II is also fundamental for retaining sodium and water in the body and activating the secretion of aldosterone.

This peptide hormone (Angiotensin II) is secreted by various cells types, especially in the liver, in different body tissues.

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why are hooves more advantages for horses in the modern era

Answers

Answer:

just search it up on google

Answer:

Hooves are better equipped for environments with plains.

Explanation:

I just got this right on my quiz, hope this helps :)

Thoroughly analyze the alguments made in the article regarding potential
evolutionary links between the australopithecines and the ancestors of
the genus Homo. What evidence is provided by the author to conclude
that the later paranthropoids were not direct ancestors of modern
humans? Is this evidence sufficient to support his claim? Why or why not?

Answers

Extinct species of hominins known as Australopithecus may have been the ancestors of modern humans (Homo sapiens). The first fossils, which were found in South Africa, are referred to as Australopithecus.

After almost a century of findings, the first species to be called Australopithecus was given that name in 1925, and today, paleoanthropologists may access a sizable collection of fossilized hominin remains from Africa. High-quality fossils of early human species are still very hard to find despite decades of research, making it even more important for scientists to continue finding them in order to better understand the biology and variety of Australopithecus. The Great Rift Valley in eastern Africa, the limestone caves of South Africa, the sedimentary deposits of the Chad Basin, and the Djurab Desert are the only places on earth where geological circumstances are favorable for the preservation and excavation of hominid fossils (an arid region in central Chad).

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What causes scientists to disagree?
O A. Some scientists are better than others.
B. They have unique perspectives and skills.
C. Scientists disagree to get attention.
O D. Many scientists do not use the scientific process.

Answers

Answer:

B. They have unique perspectives and skills.

The answer is b. They have unique perspectives and skills

We used a lonza electrophoresis device to study the dna methods in our lab. What part of the electrophoresis set up is represented by a? [5]

Answers

The image to determine the 'component a' is not found here, but the electrophoresis device is composed of an agar/polyacrylamide gel, a chamber and poles (cathode and anode).

What is electrophoresis?

Electrophoresis is a device used in the laboratory to separate biomolecules depending on their charge and mass.

The electrophoresis device consists of an agar/polyacrylamide gel, a chamber, and two poles: cathode (positive) and anode (negative).

Electrophoresis is very useful to separate DNA molecules, which migrate to the positive pole due to their negative charge.

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During which phase of the cell cycle does the cytoplasm of a cell divide to form two daughter cells?.

Answers

Answer:

Telophase or in other words the final phase of mitosis

Explanation:

Which system of the body would be most directly affected if excess cholesterol led to plaque deposits in arteries?
circulatory system
immune system
endocrine system
respiratory system

Answers

Answer:

endocrine system

Explanation:

it would stop circulating hormones through they system



Called the "Fourth Force" What is the most dominant influence in the field of psychology, including

psychotherapy

Answers

Answer:

Transpersonal psychology, as the fourth force in psychology, has emerged from humanistic psychology (the third force) in much the same way that humanistic approaches emerged from their behavioral and analytic foundations

hope this helps :)

3. Algae makes energy-rich carbon compounds through
photosynthesis.
4. A volcano erupts.
5. Carbon dioxide dissolves in rainwater.
<
6. Humans use gasoline to power their cars.
7. Organisms carry out cellular respiration to release
energy from food molecules.
Check Answer

Answers

A complementary process in nature either adds (options 3, 6, and 7) or removes ( options 4 and 5) carbon dioxide from the atmosphere.

Complementary processes and it's benefits

The processes that leads to the addition of carbondioxide back to the atmosphere include the following:

The eruption of volcanoes.

Cellular respiration carried out by organisms to release energy from food molecules.

The use of gasoline to power cars

The processes that leads to the removal of carbondioxide from the atmosphere include:

The production of energy-rich carbon compounds through photosynthesis.

The dissolution of carbondioxide in rainwater.

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I need help I don't understand

Answers

they may look different because one slide may be dyed and one slide may not. or they may b slides of different things

An advantage to mendel working with purebred plants is.

Answers

Answer:

He would get a expected gene in a plant, for example. Purebred tall pea plants would most likely give off more tall plants, with little runts.

It gives a certainty to what you're doing, and getting more sellable/ useable products.

A plant can produce either purple flowers or white flowers. The purple flower color is dominant over the white flower color. What is the ratio of the offspring with purple flowers to the total number of offspring if two plants that are heterozygous for purple flowers are crossed?
1:4
2:4
3:4
4:4

Answers

It’s 3:4 that’s the answer

Answer:

the answer is c and not d

Explanation:

An earthquake causes a new canyon to form. The canyon separates two populations of snakes. After many years, the canyon fills in, and the two populations come back together. If they can still interbreed, then __________.
Select one:

a.
evolution has occurred

b.
evolution has not occurred

c.
evolution will occur when the offspring are born

d.
evolution will never occur

Answers

Answer:

B. Evolution has no occurred

Explanation:

The change in genetics would prohibit the two populations from interbreeding.

EX. Take humans and apes, we are generally the same species however we cannot successfully interbreed.

Lophotrochozoan phyla have a lophophore, a specialized structure for _____.

Answers

Answer:

suspension feeding

Explanation:

hope this helps.

In general, the frequency of crossing over between two linked genes depends on what?

How far apart they are on the chromosome
The characteristics that the genes code for
Whether the genes are dominant or recessive
The phase of meiosis in which the crossing over occurs

Answers

Answer:

Crossovers during meiosis happen at more or less random positions along the chromosome, so the frequency of crossovers between two genes depends on the distance between them.

The closer two genes were to one another on a chromosome, the greater their chance of being inherited together. In contrast, genes located farther away from one another on the same chromosome were more likely to be separated during recombination.

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If two genes are far apart, for example at opposite ends of the chromosome, crossover and non-crossover events will occur in equal frequency. Genes that are closer together undergo fewer crossing over events and non-crossover gametes will exceed than the number of crossover gametes.

Which of the following is/are most likely to be part of the gastrointestinal reflex pathway? 1. Stretch receptors 2. Neurons of the autonomic nervous system 3. Muscle fibers of the transversus abdominus.

Answers

The stretch receptors and neurons of the autonomic nervous system are parts of the gastrointestinal reflex pathway.

What is Gastrointestinal reflex?

This is usually stimulated by senses as a result of the presence of stretch receptors and neurons of the autonomic nervous system.

They help in controlling  the release of acids in the stomach and also suppresses the release of digestive proteins.

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Which statement best explains why cell differentiation is essential to the structure and function of multicellular organisms?
It makes the cells grow larger as the body grows.


It creates the specialized cells needed to form tissues and organs.


It fixes mutations in DNA that were created during replication.


It produces the proteins needed for chemical reactions to keep the body moving.

Answers

Answer:

The answer is D! It produces the proteins needed for chemical reactions to keep the body moving.

have a blessed day :)

Explanation: i just took the k12 test :D

Answer:

C) It creates the specialized cells needed to form tissues and organs.

rays of the sun hitting your face. is it potential energy kinetic energy or both

Answers

Answer:Radiant energy is a form of kinetic energy so it is Kinetic energy .

Enzymes have an attachment site called the __ site for the __ to join

Answers

Answer:

Enzymes have an attachment site called the active site for the substrate to join. Consequently, what is catalytic site of enzyme? In biology, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction.

Enzymes have an attachment site called the active site for the substrate to join. Enzymes then convert the substrate into a product and release it from the active site.

What is an enzyme, and how does it function?

The enzyme has an active site where the substrate binds and then forms a noncovalent bond with the enzyme. As a result of this binding, the product is formed by different modifications.

The enzyme has another site apart from the active site, and that is called the allosteric site. This site is occupied by regulators that can regulate the enzyme by enhancing or suppressing the enzyme's activity.

The enzyme is made up of amino acids by the process of translation, but not all enzymes are made up of amino acids. Apart from the polypeptide chain, there are molecules such as zinc, magnesium, etc. at the catalytic site to help enzymes make the product.

Hence, enzymes have an attachment site called the active site for the substrate to join.

 

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Scientists dedicate their lives to knowledge, but even with a lifetime commitment, sometimes scientists fail to find all the answers. One mystery that still remains unsolved is why we yawnwhat makes us yawn and what purpose it serves.Recent studies suggest that we yawn when we get tired as a way to encourage our brains. The theory is that yawning helps cool the brain, allowing it to work more efficiently. According to WebMD's article about these studies, when you yawn, your jaw muscles get stretched, increasing blood flow to your neck, face, and head. Also a deep breath during the yawn forces spinal fluid and blood down from the brain. The cool air then cools down these fluids.Other scientists believe, however, that yawning is a form of communication. This theory attempts to explain why yawning seems to spread from person to person. This kind of behavior is called "contagious yawning" and carries with it a possible social message. 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