1. Which of the following is FALSE? A. If a genetic disease reduces fertility and the...
1. Which of the following is FALSE?
A. If a genetic disease reduces fertility and the
allele that causes the disease offers no other advantage, the
allele will likely eventually disappear, due to natural
selection.
B. Natural selection does not favor individuals
who are homozygous for the sickle-cell allele, because these
individuals typically die before they are old enough to
reproduce.
C. Individuals who are heterozygous HbA/HbS are
protected from malaria, and this is why sickle-ce disease persists
in wetter, mosquito-prone regions in Africa.
D. In regions where malaria does not occur,
individuals who are heterozygous HbA/HbS have a fitness advantage
over those who homozygous for the hemoglobin allele (HbA).
2. AFTER malaria is cured, the
frequency of the HbS allele should decrease in regions with lots of
mosquitoes because:
A. People will no longer die from sickle-cell
disease in these regions.
B. Having one copy of the HbS
allele will no longer be advantageous in these regions.
C. Natural selection will no longer act on the
HbS allele at all in these regions.
D. All alleles associated with genetic diseases
eventually disappear.
3. If the frequency of the HbS
allele is 0.1 in a population, what is the frequency of the HbA
allele (assuming this is a two-allele system)?
4. Which of the following would be sufficient for the
Hardy-Weinberg equation to accurately predict genotype frequencies
from allele frequencies?
p+ q = 1
A. The population is not evolving due to natural
selection.
B. The population is not evolving due to any of
the conditions that disrupt Hardy-Weinberg equilibrium.
C. The population is infinitely large.
.
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TABLE OF CHI SQUARED VALUES. D.F = DEGREES OF FREEDOM
df
<0.10
<0.05
<0.01
<0.001
1
2.706
3.841
6.635
10.8
2
4.605
5.991
9.210
13.8
3
6.251
7.815
11.345
16.3
4
7.779
9.488
13.277
18.5
5
9.236
11.070
15.086
20.5
6
10.645
12.592
16.812
22.4
8
13.362
15.507
20.090
26.1
10
15.987
18.307
23.209
29.6
12
18.549
21.026
26.217
32.9
20
28.412
31.410
37.566
45.3
25
34.382
37.652
44.314
52.6
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JUST PART B PLEASE AND THANK YOU
TABLE OF CHI SQUARED VALUES. D.F = DEGREES OF FREEDOM
df
<0.10
<0.05
<0.01
<0.001
1
2.706
3.841
6.635
10.8
2
4.605
5.991
9.210
13.8
3
6.251
7.815
11.345
16.3
4
7.779
9.488
13.277
18.5
5
9.236
11.070
15.086
20.5
6
10.645
12.592
16.812
22.4
8
13.362
15.507
20.090
26.1
10
15.987
18.307
23.209
29.6
12
18.549
21.026
26.217
32.9
20
28.412
31.410
37.566
45.3
25
34.382
37.652
44.314
52.6
Rules for Assigning...
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