BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 20, Problem 1A
In a population of red (dominant allele) or white flowers in Hardy–Weinberg equilibrium, the frequency or red flowers is 91%. What is the frequency of the red allele?
a. 9%
b. 30%
c. 91%
d. 70%
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Students have asked these similar questions
Assume two alleles A1 and A2 with known frequencies e.g. p (A1) = 0.7, q (A2)= 0.3
What would be the frequency of the A1A2 ?
a. 0.49
b. 0.09
c. 0.21
d. 0.42
In a Hardy-Weinberg population with two alleles, G and g, that are in equilibrium, 40% of the alleles are recessive. What percentage of the population is homozygous for the dominant allele?
a. 9%
b. 36%
c. 70%
d. 60%
e. 30%
The response to selection of flower size in a plant species is studied. Flower size is measured in the population and an average of 30.4 mm is obtained. A set of plants with average flower size of 34.13 mm are allowed to interbreed and a their offspring have a mean flower size of 32.21 mm.
What is the realized heritability?
A.
0.485
B.
0.846
C.
0.767
D.
0.979
Chapter 20 Solutions
BIOLOGY
Ch. 20.1 - Define evolution and population genetics.Ch. 20.1 - Prob. 2LOCh. 20.2 - Explain the HardyWeinberg principle.Ch. 20.2 - Describe the characteristics of a population that...Ch. 20.2 - Prob. 3LOCh. 20.3 - Define the five processes that can cause...Ch. 20.3 - Prob. 2LOCh. 20.4 - Prob. 1LOCh. 20.4 - Prob. 2LOCh. 20.4 - Demonstrate how the success of different...
Ch. 20.5 - Prob. 1LOCh. 20.5 - Prob. 2LOCh. 20.5 - Prob. 3LOCh. 20.6 - Define frequency-dependent selection, oscillating...Ch. 20.6 - Prob. 2LOCh. 20.7 - Define and contrast disruptive, directional, and...Ch. 20.7 - Prob. 2LOCh. 20.8 - Explain how experiments can be used to test...Ch. 20.9 - Prob. 1LOCh. 20.9 - Prob. 2LOCh. 20.10 - Prob. 2LOCh. 20 - If all white cats died, what proportion of the...Ch. 20 - Assuming that the values on the x-axis represent...Ch. 20 - Prob. 3DACh. 20 - Prob. 4DACh. 20 - Examine the index of copper tolerance on nonmine...Ch. 20 - Prob. 6DACh. 20 - Why are rare alleles particularly likely to be...Ch. 20 - Prob. 2IQCh. 20 - Prob. 3IQCh. 20 - Prob. 4IQCh. 20 - Prob. 5IQCh. 20 - Prob. 6IQCh. 20 - Prob. 7IQCh. 20 - Prob. 8IQCh. 20 - Prob. 9IQCh. 20 - Assortative mating a. affects genotype frequencies...Ch. 20 - When the environment changes from year to year and...Ch. 20 - Many factors can limit the ability of natural...Ch. 20 - Stabilizing selection differs from directional...Ch. 20 - Founder effects and bottlenecks are a. expected...Ch. 20 - Relative fitness a. refers to the survival rate of...Ch. 20 - For natural selection to result in evolutionary...Ch. 20 - Prob. 8UCh. 20 - In a population of red (dominant allele) or white...Ch. 20 - Genetic drift and natural selection can both lead...Ch. 20 - Prob. 3ACh. 20 - Prob. 4ACh. 20 - In Trinidadian guppies a combination of elegant...Ch. 20 - On large, black lava flows in the deserts of the...Ch. 20 - Based on a consideration of how strong artificial...
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- If the frequency of allele 1 is 0.8 and the frequency of allele 2 is 0.2 what is the expected frequency of heterozygotes under Hardy Weinberg? Group of answer choices A. 0.32 B. 0.8 C. 0.2 D. 0.16arrow_forwardA gene exists in two alleles designated D and d. If 48 copies of this gene are the D allele and 152 are the d allele, what is the allele frequency of D? a. 0.24 c. 0.38 b. 0.32 d. 0.76arrow_forwardThe allele frequency of C is 0.4 and c is 0.6. If the population is in Hardy-Weinberg equilibrium, what is the frequency of heterozygotes? a. 0.16 c. 0.26 b. 0.24 d. 0.48arrow_forward
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- A population has a frequency of p = .4 and q= .6. You were told that in this population p2+2pq+q2= 1. Is the population in HW equilibrium? a. No because the HW equation is not true b. lettuce c. Yes because the HW equation is true d. There is not enough information since we do not know whether p2= the frequency of the homozygous dominant, q2 the frequency of the homozygous recessive and 2pq the frequency of the heterozygotearrow_forwardYou are surveying population genetics of snails while studying abroad in New Zealand. At your locus of interest, you have AA: 32 Aa:46 aa: 22. Identify the statement that accurately describes this population. a. The genotype frequency of AA is 0.77. b. The frequency of the A allele is 0.45. c. The genotype frequency of the heterozygotes is 0.45. d. The frequency of the a allele is 0.23.arrow_forwardA population of birds may have red feathers or orange feathers. Red feathered birds have the genotype RR or Rr. Orange feathered birds have the genotype rr. The frequency of the RR genotype is .46 a. What is the frequency of heterozygous birds? B. What is the frequency of the R allele ? C. What is the frequency of r allele?arrow_forward
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