EBK BIOLOGY
5th Edition
ISBN: 9780133954425
Author: Maier
Publisher: YUZU
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Chapter 7, Problem 9LTB
Summary Introduction
Introduction:
The quantitative traits are the measurable
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Students have asked these similar questions
For selective breeding to be successful, the starting populationmusta. have genetic variation that affects the trait of interest.b. be very large.c. be amenable to phenotypic variation caused by environmentaleffects.d. have very little phenotypic variation.
High values for heterozygosity (or expected heterozygosity) at a genetic locus in a population indicates that there is:
a.
A lot of genetic variation
b.
Little genetic variation
c.
A population not under HW equilibrium
d.
A large amount of homozygosity
How are traits normally distributed in a population?
a
with one peak shifted toward an extreme
b
in a bell curve
c
with two peaks and a trough
d
in a straight line
Chapter 7 Solutions
EBK BIOLOGY
Ch. 7 - What is the relationship between genotype and...Ch. 7 - Prob. 2LTBCh. 7 - Prob. 3LTBCh. 7 - Prob. 4LTBCh. 7 - Prob. 5LTBCh. 7 - Scientists have recently developed a process by...Ch. 7 - What is the physical basis for the independent...Ch. 7 - Prob. 8LTBCh. 7 - Prob. 9LTBCh. 7 - Prob. 10LTB
Ch. 7 - Prob. 1GPCh. 7 - Prob. 2GPCh. 7 - Prob. 3GPCh. 7 - Prob. 4GPCh. 7 - Pfeiffer syndrome is a dominant genetic disease...Ch. 7 - Prob. 6GPCh. 7 - A cross between a pea plant that produces round...Ch. 7 - Prob. 8GPCh. 7 - The allele BRCA2 was identified in families with...Ch. 7 - Two parents both have brown eyes, but they have...Ch. 7 - Prob. 2AAATBCh. 7 - Prob. 3AAATBCh. 7 - Prob. 1CTSCh. 7 - Prob. 2CTSCh. 7 - Prob. 3CTS
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- If predicted genotypic frequencies do not match actual genotypic frequencies, what is true of the population? a It is changing. b It is in equilibrium. c The frequencies are unpredictable. d The sample population was too large.arrow_forwardWhich of the following principles of selection are true for both the sickle cell and rock pocket mice examples? Check all that apply. (1 or more are correct). Group of answer choices A_The same genotype can have higher fitness in one environment, but lower fitness in another environment B-Some genotypes have higher fitness than other genotypes C-Some genotypes have lower fitness than other genotypesarrow_forwardGenetic drift is most likely to affect:a. every population, regardless of sizeb. small populationsc. large populationsd. large and diverse communitiesarrow_forward
- Genetic drift is a. a change in allele frequencies due to random fluctuations. b. likely to result in allele loss or fixation over the long run. c. more pronounced in smaller populations. d. all of the above.arrow_forwardStabilizing selection on a trait tends toa. make the trait more extreme.b. reduce variability in the trait.c. decrease the frequency of alleles associated with the trait.d. result in elaborate male ornaments.arrow_forwardI am testing the prediction that spiders with colors that match a flower (cryptic coloration) will have greater success hunting bees visiting that flower. I set up two treatments for spiders: those matching their flower and those not matching their flower. I measure how long it takes each of them to catch a bee. What kind of statistical test would be best for testing my prediction? Chi-square ●ANOVA Regressionarrow_forward
- Heritability: A. is the proportion of a trait in an individual that is explained by genes. B. decreases due to natural selection. C. is not influenced by the amount of environmental variance in a population. D. All of the abovearrow_forwardA very large population of randomly-mating laboratory mice contains 35% white mice. White coloring is caused by the recessive genotype, "aa". Calculate the frequency of the homozygous dominant genotype (AA). * a. 5.9 % b. 17% c. 35% d. 41% e. 48% f. 59% g. 65% h. none of the choices A very large population of randomly-mating laboratory mice contains 35% white mice. White coloring is caused by the recessive genotype, "aa". Calculate the frequency of the dominant trait.* a. 5.9 % b. 17% c. 35% d. 41% e. 48% f. 59% g. 65% h. none of the choicesarrow_forwardRelative fitness is more important than absolute fitness because ________ . a. Evolutionary change depends on differences in fitness among individuals within a population b.Relative fitness is calculated by dividing the absolute finesses with each other c.Relative fitness is based on mutation rates d. None of the abovearrow_forward
- In a population of squirrels in North Carolina, the heritability forbody weight is high. This means thata. body weight is primarily controlled by genes.b. the environment has little influence on body weight.c. the variance in body weight is mostly due to genetic variation.d. both a and b are correct.arrow_forwardA. When genetic drift and natural selection are combined what happens to the deleterious allele. B. What changes would be caused by population size increasearrow_forwardAll of the following are considered a quantitative trait, EXCEPT? a. A trait that has a continuously varying phenotype in the population. b. A trait that is influenced by both genetic and environmental factors. c. A trait that has multiple genes that contribute to the phenotype. d. A trait that is influenced by one gene that follows complete dominance inheritance patterns.arrow_forward
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