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sdas [7]
2 years ago
7

Bob...........................

Biology
1 answer:
Pepsi [2]2 years ago
5 0
The builder can he fix it
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In a hypothetical population of plants, flower color is determined by a single gene with two alleles. In a population of 500 pla
blondinia [14]

Answer:

In the F1 generation

RR = 0%

Rr = 50% (or 0.5)

rr = 50% (or 0.5)

Explanation:

A pink flowering plant has the genotype Rr. It is heterozygous for the allele. The alleles for this gene appears to show incomplete dominance, as the heterozygous phenotype is a blend of the two homozygous genotypes.

A white flowering plant has the genotype rr. It is homozyogous for the white allele

A punnet square of the cross is shown.

The resulting punnet square shows that only Rr and rr genotypes are possible, at a ratio of 50:50 (or 1:1). Therefore, the genotype frequency of Rr is 50%, and rr is 50% in the F1 generation. This can also be written as 0.5. It is not possible to get a red plant, as the genotype RR can not come from this cross

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8 0
3 years ago
Is this correct? (Check image)
Karo-lina-s [1.5K]

Answer:

Genetic Drift Is: variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce. How Cats Become Feral: Over time, a stray cat can become feral as her contact with humans dwindles. A stray cat may be socialized enough to allow people to touch her, but she will become less socialized—or even feral—if she spends too much time without positive interaction with humans.

6 0
2 years ago
Question 2 (1 point)
vodomira [7]
A) a large group of cells that grew without regulation.

A tumor is where there is a mutation that causes cells to lose their ability to self regulate, so they reproduce too fast and become unspecialised, causing a tumour.

Let me know if you have any questions
7 0
3 years ago
There are many different categories of T-cells that carry out various roles for the immune system. Differentiation for most T-ce
Likurg_2 [28]

Answer:

The answer is actually B) Memory T. Memory T cells rapidly produce large numbers of effector T-cells when re-exposed to their antigens, which provides the immune system  memory against past infections.

7 0
3 years ago
Read 2 more answers
Why do scientists consider vestigial structures (like a human appendix) evidence for evolution?
qaws [65]

Answer:

vestigial structures are considered evidence because scientists believe they are structures that were once used by a species ancestors but are not longer needed. these structures do not impair the organism in any way, so there is no need for evolution to get rid of them. for example, the human appendix is considered a vestigial structure.

Explanation:

:D

4 0
3 years ago
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