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Mice21 [21]
3 years ago
7

Explain the significance of mitosis

Biology
1 answer:
postnew [5]3 years ago
6 0
Mitosis - <span>It is a process of cell multiplication that is characterized by a chromosome duplication and a cell division. The result is that the daughter cells will have the same number of chromosomes as the mother cell.</span>
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Colored aleurone in the kernels of corn is due to the dominant allele R. The recessive allele r, when homozygous, produces color
Pie

Answer:

The genes are linked, and the arrangement is coupled (one homolog has both dominant alleles; the other homolog has both recessive alleles).

RY / ry

Explanation:

R_= colored aleurone

rr= colorless aeurone

Y_= green plant

yy= yellow plant

They do a testcross between a plant of unknown genotype and phenotype and a plant that is homozygous recessive for both traits (yr/yr) the following F1 is obtained:

  • 88 Colored, green (RY/ry)
  • 92 colorless, yellow (ry/ry)
  • 8 colorless, green (rY/ry)
  • 12 colored, yellow (Ry/ry)

If the genes assorted independently, all of the possible offspring phenotypes would appear in the same frequency. However, they obtained 2 phenotypes much more abundant that the other two. Since recombination is a rare event during crossing over, when two genes are linked the recombinant gametes are produced less frequently than the parentals.

We can propose that the phenotypes Colored, green (RY) and colorless yellow (ry) are the parental gametes, and the unknown plant has the arrangement RY/ry, with both genes linked.

6 0
3 years ago
List the three components that comprises a nucleotides
Cerrena [4.2K]
Nitrogeneous bases
sugar
phosphate group

3 0
3 years ago
in a clade, mammalian has the three descendents: monotreme, marsupials, and eutheria. What will these three descendants together
Tems11 [23]
I think sister groups. Imagine them having the same parents.
5 0
3 years ago
Can someone please, "(Explain the relationship between planets and moons)?"
daser333 [38]
The relationship between planets and moons are: moons are natural objects that orbit planets, while planets orbit the sun
7 0
3 years ago
How would a tree falling from the top most layer most immediately affect the surrounding plants in the other lower layers?.
Pachacha [2.7K]

Answer:

More sunlight but less space.

Explanation:

The fallen tree would have let in more sunlight as it was blocking sunlight from getting in most of the time. Since the tree fell more sunlight will be able to get in. The only problem would the fact that there will be less space depending on the size of the tree and how it fell over.

3 0
2 years ago
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