Ask Question
8 March, 02:01

Sixty flowering plants are planted in a flowerbed. forty of the plants are red-flowering homozygous dominant. twenty of the plants are white-flowering homozygous recessive. the plants naturally pollinate and reseed themselves for several years. in a subsequent year, 178 red-flowered plants, 190 pink-flowered plants, and 52 white-flowered plants are found in the flowerbed. use a chi-square analysis to determine if the population is in hardy-weinberg equilibrium

+4
Answers (1)
  1. 8 March, 05:25
    0
    The flowering population is in Hardy Weinberg equilibrium.

    Step by Step Explanation:

    Total initial population size = 60

    As both the populations are homozygous so the frequency of alleles will be,

    P = 80/120 = 0.66

    q = 40/120 = 0.33

    The predicted frequencies for genotypes once the population has reached Hardy-Weinberg

    p2 = 0.4356

    2pq = 0.4356

    q2 = 0.1089

    The number of plants with each type of flower in a papulation of 420 is,

    Homozygous dominant = 185

    heterozygous = 185

    Homozygous recessive = 50

    Chi square analysis:

    The observed values for red-flowered plants, pink-flowered plants, and white-flowered plants are not significantly different from the expected values predicted by Hardy Weinberg equilibrium.

    Phenotype observed (o) expected (e) (o-e) 2/e

    Red 178 185 0.26

    Pink 190 185 0.135

    White 52 50 0.08

    chi-square = 0.474

    With 2 degree of freedom this chi-square gives a p value of 0.7 - 0.8, which is not significant.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Sixty flowering plants are planted in a flowerbed. forty of the plants are red-flowering homozygous dominant. twenty of the plants are ...” in 📘 Biology if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers