Biology, 24.07.2020 07:01 mchpalmer

A population of 200 mice contains 168 brown mice. Brown is dominant to gray. How much of the population would be h o m o z y g o u s dominant? A. 84% B. 36% C. 6% D. 48%

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If the population of 200 mice contains 168 brown mice, and brown is dominant to gray, then 36 percent (36%) of the population would be homo-zygous dominant.

In a population at Hardy–Weinberg (HW) equilibrium, the allele frequencies of a given gene in the population will remain constant generation after generation if there is no mutation, no migration, no natural selection, and if there is random mating. The genotype frequencies will also remain the same if the population is at HW equilibrium.According to the HW equilibrium, p² indicates the frequency of the homo-zygous dominant genotype 'BB' (phenotype: brown mice), q² indicates the frequency of the homo-zygous recessive genotype 'bb' (phenotype: gray mice), and 2pq represents the frequency of the heterozygous genotype Bb (phenotype: brown mice). Moreover, the sum of the allele frequencies for B and b alleles at the target locus must be equal to 1, so p + q = 1.In this case, the frequency of the homo-zygous recessive genotype is equal to the number of individuals that don't exhibit the dominant phenotype, so

q² (bb) = (200 - 168)/200 = 32/200 = 0.16 >> q: √ 0.16 = 0.4

p = 1 - q = 1 - 0.4 = 0.6 >> p² (BB) = 0.6 x 0.6 = 0.36

In conclusion, at HW equilibrium, the frequency of the homo-zygous dominant genotype 'BB' (p²) will be 0.36 (36%).

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A population of 200 mice contains 168 brown mice. Brown is dominant to gray. How much of the populat

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The answer will be d

Answer from: Quest

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.

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