Gametophytes of the C-fern were described in Table 1 (p. 281) and their sporophyte offspring were described in Table 2 (p. 282). The following questions are based on the class data totals. 1. What was the proportion (frequency or percentage) of the dominant and recessive alleles in the gametophyte generation? 2. What was the proportion (frequency or percentage) of the dominant and recessive alleles in the sporophyte generation? 3. Using Hardy-Weinberg Equilibrium equation, what are the expected genotypes of the sporophyte generation in Hardy-Weinberg Equilibrium based on the population of the gametophytes? 4. Was this population in Hardy-Weinberg Equilibrium? If so, why is that expected? If not, what possible reason could explain the results?
Gametophytes of the C-fern were described in Table 1 (p. 281) and their sporophyte offspring were described in Table 2 (p. 282). The following questions are based on the class data totals. 1. What was the proportion (frequency or percentage) of the dominant and recessive alleles in the gametophyte generation? 2. What was the proportion (frequency or percentage) of the dominant and recessive alleles in the sporophyte generation? 3. Using Hardy-Weinberg Equilibrium equation, what are the expected genotypes of the sporophyte generation in Hardy-Weinberg Equilibrium based on the population of the gametophytes? 4. Was this population in Hardy-Weinberg Equilibrium? If so, why is that expected? If not, what possible reason could explain the results?
Chapter21: Plant Evolution
Section: Chapter Questions
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Transcribed Image Text:Gametophytes of the C-fern were described in Table 1 (p.
281) and their sporophyte offspring were described in
Table 2 (p. 282). The following questions are based on the
class data totals.
1. What was the proportion (frequency or
percentage) of the dominant and recessive alleles in
the gametophyte generation?
2. What was the proportion (frequency or
percentage) of the dominant and recessive alleles in
the sporophyte generation?
3. Using Hardy-Weinberg Equilibrium equation, what
are the expected genotypes of the sporophyte
generation in Hardy-Weinberg Equilibrium based
on the population of the gametophytes?
4. Was this population in Hardy-Weinberg
Equilibrium? If so, why is that expected? If not, what
possible reason could explain the results?
Table 1. Gametophyte phenotypes w et slagal
Date data recorded 10/17/23doo beo neizivib loo in aqua te//
Phenotype
Description
solid green
polka dot
Phenotype
Description
Solid green
Group
1
69
58
Polka dot
Number of Gametophytes Per Group
Group Group Group Group Group Group Group Class Total
2
3
4
5
6
7
8
Date data recorded 11/12/23
106 99
70 64
Group Group
1
2
29
6
30
81
५१ 19
O
72
Table 2. Sporophyte phenotypes
84
67
21
Number of Sporophytes Per Group
Group Group Group
3
4
5
Group
6
31
6
5
119 १०
47
93
16
96
74 45 497
Group
7
13
2
Group Class Total
8
27
744
10
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Step 1: The Hardy-Weinberg principle
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