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3 years ago

Recessive genes are expressed under which of the following conditions?

1 answer:

3 0

D. Only in the absence of dominant genes for the same trait.
Recessive genes are absent of something, so both genes have to be absent of that particular trait.

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What is the original source of almost all energy in most ecosystems

Serga [27]

Answer:

The sun or solar energy is at the start of almost every energy

chain.

Explanation:

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3 years ago

How do identical twins form?

Evgesh-ka [11]

The answer is A.

Twins form in one of two ways:
Identical twins occur when a single fertilized egg splits into two.
Fraternal twins occur when two, separate eggs are fertilized by two, separate sperm.

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3 years ago

Read 2 more answers

The ______ regulates the amount of glucose circulating in the blood by either synthesizing glycogen or breaking down glycogen.

natita [175]

Answer:

Glucagon

Explanation:

It is a peptide hormone secreted by the pancreas, raises blood glucose levels

Glucagon stimulates glycolysis, the breakdown of glycogen and the export of glucose into the circulation

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2 years ago

Discuss the importance of vernalization

xxMikexx [17]

Answer:

The important of vernalization it includes early flowering there by shortening the vegetative cycle of the plants (it is a production of more than a one crop in one year) the winter variety crops can be converted to spring variety (it's the protection from the freezing of injury) it helps in the increasing of yield of the plants.

Maybe this answer might help u out.

3 0

3 years ago

Calculate the average ml of oxygen molecules in 100 ml blood in the athletes at low altitude and then in athletes in high altitu

Neko [114]

Answer:

$27.8$ mL of oxygen in $100$ ml of blood

Explanation:

It is proven that a healthy human being has in general $20$ grams of hemoglobin in $100$ milliliters of blood.

It is given that -

Amount of oxygen found in $1$ grams of hemoglobin is equal to $1.39$ milliliters of oxygen.

Thus, the total amount of oxygen in milliliters would be equal to product of total weight of hemoglobin and the total amount of oxygen in ml in one gram of hemoglobin.

$= 20 * 1.39 \\= 27.8$ mL

8 0

3 years ago