1. In a population of 1000 bison, there are two alleles at the B locus. It acts incompletely dominantly, so that you are able to figure out each animal's genotype simply by observing its phenotype. How convenient. You find 665 BB, 225 Bb, and 110 bb bison. a) What are the allele frequencies of B and b? (round off the number) b) Using the allele frequencies, what numbers (not just fractions, but numbers of actual bison in this population of 1000 and yes you can round off) would you expect to be BB, Bb, and bb? Do you think this bison population is in HW equilibrium?

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter19: Population Genetics And Human Evolution
Section: Chapter Questions
Problem 9QP: Using the HardyWeinberg Law in Human Genetics Suppose you are monitoring the allelic and genotypic...
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1. In a population of 1000 bison, there are two alleles at the B locus. It acts incompletely dominantly, so that
you are able to figure out each animal's genotype simply by observing its phenotype. How convenient.
You find 665 BB, 225 Bb, and 110 bb bison.
a)
What are the allele frequencies of B and b? (round off the number)
b)
Using the allele frequencies, what numbers (not just fractions, but numbers of actual bison in this
population of 1000 and yes you can round off) would you expect to be BB, Bb, and bb?
c)
Do you think this bison population is in HW equilibrium?
d)
No matter what your answer to c, if they weren't in HW equilibrium, name 5 possible reasons why.
Transcribed Image Text:1. In a population of 1000 bison, there are two alleles at the B locus. It acts incompletely dominantly, so that you are able to figure out each animal's genotype simply by observing its phenotype. How convenient. You find 665 BB, 225 Bb, and 110 bb bison. a) What are the allele frequencies of B and b? (round off the number) b) Using the allele frequencies, what numbers (not just fractions, but numbers of actual bison in this population of 1000 and yes you can round off) would you expect to be BB, Bb, and bb? c) Do you think this bison population is in HW equilibrium? d) No matter what your answer to c, if they weren't in HW equilibrium, name 5 possible reasons why.
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