Biodiversity

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Question 10

A group of botanists investigated genetic diversity in two populations of a wildflower, Silene vulgaris.

In Population A, they analyzed 40 gene loci and found that 14 of them were polymorphic. Calculate the proportion of polymorphic gene loci in Population A. Give your answer to 2 significant figures.

[2]

In Population B, the botanists studied a flower color trait controlled by a single gene with two alleles:

The allele for pink flowers ( $D$ ) is dominant.
The allele for white flowers ( $d$ ) is recessive.

The botanists recorded the following frequencies in Population B:

Total number of plants with pink flowers ( $DD\,$ or $D d$ ) = 336
Total number of plants with white flowers ( $dd$ ) = 64

Use the Hardy–Weinberg equations to estimate the proportion of heterozygous individuals in Population B:

p^2 + 2pq + q^2 = 1

p + q = 1

Give your answer to 2 decimal places.

[4]

A group of botanists investigated genetic diversity in two populations of a wildflower, Silene vulgaris.

In Population A, they analyzed 40 gene loci and found that 14 of them were polymorphic. Calculate the proportion of polymorphic gene loci in Population A. Give your answer to 2 significant figures.

[2]

In Population B, the botanists studied a flower color trait controlled by a single gene with two alleles:

The allele for pink flowers ( $D$ ) is dominant.
The allele for white flowers ( $d$ ) is recessive.

The botanists recorded the following frequencies in Population B:

Total number of plants with pink flowers ( $DD\,$ or $D d$ ) = 336
Total number of plants with white flowers ( $dd$ ) = 64

Use the Hardy–Weinberg equations to estimate the proportion of heterozygous individuals in Population B:

p^2 + 2pq + q^2 = 1

p + q = 1

Give your answer to 2 decimal places.

Biodiversity

Question 10

Markscheme

Biodiversity

Question 10

Markscheme

Biodiversity

Question 10

Biodiversity Questions

Biodiversity

Question 10

Biodiversity Questions