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grigory [225]
4 years ago
12

What is a light-year?

Biology
1 answer:
ch4aika [34]4 years ago
4 0

Answer:

The answer is (a)

Explanation:

a light year is a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 trillion miles).

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A plant with the dominant trait, wrinkled seeds, is crossed with a plant that has non-wrinkled seeds. All of the offspring are a
laila [671]
The answer is 0 percent.

If we represent dominant trait (wrinkled seeds) with A and recessive trait (non-wrinkled seeds) with a, then genotypes are AA (dominant homozygous), Aa (heterozygous), and aa (recessive homozygous). The phenotype of wrinkled seed is determined by genotypes either Aa or AA. Since the cross of a plant with wrinkled seed with a plant with non-wrinkled sees gives only wrinkled-seeded offspring, the plant with wrinkled seeds must be dominant heterozygous.
Let's look at both examples.
If wrinked-seeded parent contains one non-wrinkled allele, it must be heterozygous (Aa):

Parents:       Aa      x      aa
Offspring:    Aa    Aa    aa   aa

So, the 50% of offspring has wrinkled seeds and 50% has <span>non-wrinkled seeds. 

If </span><span>the wrinkled-seeded parent does not contain any non-wrinkled allele:
</span>Parents:       AA      x      aa
Offspring:    Aa<span>    Aa    Aa   Aa
</span><span>
Thus, al</span><span>l of the offspring are heterozygous and all of them have wrinkled seeds.</span>
3 0
3 years ago
Read 2 more answers
What is the function of DNA polymerase?
Monica [59]

Answer:

may be the answer is

DNA polymerase is an enzyme that works to transport DNA from the nucleus to the cytoplasm.

6 0
3 years ago
What role does celluar respiration play in the carbom cycle
goldfiish [28.3K]

Answer AND Explanation:

Respiration by both plants and animals as well as by microorganisms converts some of the organic compounds into carbon dioxide. The latter is released back to the atmosphere and reused by green plants.

5 0
4 years ago
Which trait is most likely to be selected in the population of plants growing in this region of the desert?
k0ka [10]

Water loss is a problem for desert plants; Therefore, many plants have adaptations in their leaves to avoid losing large amounts of water. Some of these leaf adaptations are: (1) hairy or fuzzy leaves, (2) small leaves (3) curled leaves, (4) wax-coated leaves, and (5) green stems but no leaves.

Plants that live in this type of desert include the salt shrub, buckwheat shrub, black shrub, rice grass, little horse brush, black sage, and chrysothamnus. Some animals have special adaptations to cope with the desert heat and lack of water.

Learn more about desert trait below.

what is a the desert - Brainly.in

https://brainly.in › English › Secondary School

#SPJ10

3 0
2 years ago
A harmful substance. A.Pollution B.Overharvesting C.Runoff water D.Exotic species
Tasya [4]

Answer:

pollution

Explanation:

It is damaging to the environment and organisms within it.

6 0
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