Question

In pea plants, purple flower color, C, is dominant to white flower color, c. The table shows the frequencies of the dominant and recessive alleles in three generations of peas in a garden. Generation 1 has 200 flowers, generation 2 has 400, generation 3 has 400. Allele Frequency for Flower Color in Peas Generation p q 1 0.5 0.5 2 0.6 0.4 3 0.7 0.3 Which best describes the number of flowers? Generation 1 has more white flowers than generation 2. Generation 3 has more white flowers than generation 2. Generation 2 has fewer purple flowers than generation 1. Generation 1 has fewer purple flowers than generation 3.

Answer 1

Option D, Generation 1 has fewer purple flowers than generation 3 is correct.

Step-by-step explanation:

Given -

Ration of color flower to white flower in generation I
`= 0.5:0.5`

Total Number of color flowers in generation I

`= 0.5 * 200\\= 100`

Total Number of white flowers in generation I

`= 0.5 * 200\\= 100`

Ration of color flower to white flower in generation II
`= 0.6:0.4`

Total Number of color flowers in generation II

`= 0.6 * 400\\= 240`

Total Number of white flowers in generation II

`= 0.4 * 400\\= 160`

Ration of color flower to white flower in generation III
`= 0.7:0.3`

Total Number of color flowers in generation III

`= 0.7 * 400\\= 280`

Total Number of white flowers in generation III

`= 0.3 * 400\\= 120`

Option D, Generation 1 has fewer purple flowers than generation 3 is correct.

Answer 2

The correct answer is option D

Generation 1 has fewer purple flowers than generation as the allele frequency of purple flower in generation 1 is 0.5 while the allele frequency for white flower in generation 3 is 0.3