CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
3rd Edition
ISBN: 9780135686065
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 3TYU
If the
- A. gene variability =0%; number of alleles = 0
- B. gene variability = 0%; number of alleles = 1
- C. gene variability = 0%: number of alleles = 2
- D. gene variability > 0%; number of alleles = 2
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A meadow is home to a population of plants of a particular species. Among these individuals are 125 plants that have red flowers and 375 plants that have white flowers. The allele of the flower color gene that produces red flowers (R) is completely dominant over the white flower color allele (r).
Approximately what percent of the plants in the meadow would be expected to have the Rr genotype?
a- 23%
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c- 2%
d- 76%
Answer the following questions:
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c. If there are 40 individuals in a population and 10 are RR, 20
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d. If there are 40 individuals in a population and 10 are RR, 10
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Chapter 21 Solutions
CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
Ch. 21.1 - Explain why genetic variation within a population...Ch. 21.1 - Of all the mutations that occur in a population,...Ch. 21.1 - Prob. 3CCCh. 21.2 - A population has 700 individuals, 85 of genotype...Ch. 21.2 - The frequency of allele a is 0.45 for a population...Ch. 21.2 - WHAT IF? A locus that affects susceptibility to a...Ch. 21.3 - In what sense is natural selection more...Ch. 21.3 - Distinguish genetic drift from gene flow in terms...Ch. 21.3 - WHAT IF? Suppose two plant populations exchange...Ch. 21.4 - What is the relative fitness of a sterile mule?...
Ch. 21.4 - Explain why natural selection is the only...Ch. 21.4 - Consider a population in which heterozygotes at a...Ch. 21 - Natural selection changes allele frequencies...Ch. 21 - Sparrows With average-sized w1ngs survive severe...Ch. 21 - If the nucleotide variability of a locus equals...Ch. 21 - There are 25 individuals in population 1, all with...Ch. 21 - A fruit fly population has a gene with two...Ch. 21 - FOCUS ON EVOLUTION Using at least TWO examples,...Ch. 21 - Prob. 8TYUCh. 21 - SYNTHESIZE YOUR KNOWLEDGE This kettle lake formed...
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