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Serjik [45]
3 years ago
15

A mutation that has risen to high frequency through a selective sweep shows a characteristic pattern in which only one allele is

found for other loci that occur nearest the selected mutation. Which of the following contribute(s) to this pattern?
Biology
1 answer:
mojhsa [17]3 years ago
5 0

<u>Answer:</u>

Recombination is less likely to separate nearby allele from the favored one  contribute(s) to this pattern.

<u>  Explanation:</u>

  • Selective sweep is the reduction/elimination of the difference in the nucleotide (allele) in the mutation. This usually occurs in a rare allele.
  • Mutation is the alteration in the existing gene of a species.
  • Recombination is the exchange of DNA between the chromosomes of the parents.
  • The mutation levels are prone to increase or decrease during recombination.

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Purple flowers are dominant to white flowers. A heterozygous purple flower is crossed with a white flower. What are the probabil
Zanzabum

Answer:

50% probability of Pp (purple) or pp (white) genotype.

Explanation:

P = purple gene

p = white gene

Punnet squares show the possible genotypes and probabilities of each genotype in the offspring of a cross:

Purple flower genotype (heterozygous) = Pp

White flower genotype = pp

Punnet Square:

\left[\begin{array}{ccc}&P&p\\p&Pp&pp\\p&Pp&pp\end{array}\right]

Potential genotypes for offspring are Pp and pp;

According to the Punnett square, 2 of 4 offspring will have the Pp genotype and the other 2 will have pp genotypes;

This means 2 should be purple and 2 white;

Or, there is a 50% chance of having either genotype, of being purple or white.

8 0
3 years ago
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Answer:

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Diffusion is a very important process for photosynthesis where carbon dioxide from the stomata diffuses into the leaves and finally into the cells. This helps the plants to photosynthesize and produce more food.

Example for animals: Animals using glucose and oxygen in diffusion.

Examples for plants: Plants using carbon dioxide to photosynthesize.

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Answer:

The correct answer is A. The two cerebral hemispheres are separated by the longitudinal fissure.

Explanation:

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The theory is the Continental drift, the super-continent is called the Pangaea.
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