Would it have made a difference if natural selection had acted on the dominant allele instead of the recessive one? Why or why not

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Would it have made a difference if natural selection had acted on the dominant allele instead of the recessive one? Why or why not
TABLE 2 Comparison of expected and observed genotypic and allelic frequencies for the F1
generation produced by the bean model:
Observed and Expected Genes in F1
Component
Observed
Expected
Frequency
Number
Frequency
Number
Alleles
A
0.43
43
0.40
40
0.57
57
0.60
60
Genotypes
AA
0.24
12
0.16
8
Aa
0.38
19
0.48
24
aa
0.38
19
0.36
18
without natural
selection
Observed and Expected Genes in F2
Component
Observed
Expected
Frequency
Number
Frequency
Number
Alleles
A
0.52
52
0.40
40
a
0.48
48
0.60
60
Genotypes
AA
0.28
14
0.16
8
Aa
0.48
24
0.48
24
aa
0.24
12
0.36
18
Transcribed Image Text:TABLE 2 Comparison of expected and observed genotypic and allelic frequencies for the F1 generation produced by the bean model: Observed and Expected Genes in F1 Component Observed Expected Frequency Number Frequency Number Alleles A 0.43 43 0.40 40 0.57 57 0.60 60 Genotypes AA 0.24 12 0.16 8 Aa 0.38 19 0.48 24 aa 0.38 19 0.36 18 without natural selection Observed and Expected Genes in F2 Component Observed Expected Frequency Number Frequency Number Alleles A 0.52 52 0.40 40 a 0.48 48 0.60 60 Genotypes AA 0.28 14 0.16 8 Aa 0.48 24 0.48 24 aa 0.24 12 0.36 18
TABLE 6
Observed and Expected Genes in F1
Component
Observed
Expected
Frequency
Number
Frequency
Number
Alleles
A
0.69
69
0.70
70
0.31
31
0.30
30
Genotypes
AA
0.48
24
0.49
24.5
Aa
0.42
21
0.42
21
aa
0.1
0.09
4.5
WITH ΝATURAL SELΕCT ION
TABLE 7
Observed and Expected Genes in F2
Component
Observed
Expected
Frequency
Number
Frequency
Number
Alleles
A
0.62
62
0.69
69
a
0.38
38
0.31
31
Genotypes
AA
0.4
20
0.48
24
Aa
0.44
22
0.42
21
aa
0.16
8
0.1
Transcribed Image Text:TABLE 6 Observed and Expected Genes in F1 Component Observed Expected Frequency Number Frequency Number Alleles A 0.69 69 0.70 70 0.31 31 0.30 30 Genotypes AA 0.48 24 0.49 24.5 Aa 0.42 21 0.42 21 aa 0.1 0.09 4.5 WITH ΝATURAL SELΕCT ION TABLE 7 Observed and Expected Genes in F2 Component Observed Expected Frequency Number Frequency Number Alleles A 0.62 62 0.69 69 a 0.38 38 0.31 31 Genotypes AA 0.4 20 0.48 24 Aa 0.44 22 0.42 21 aa 0.16 8 0.1
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