3. You have sampled a population in which you know that the percentage of homozygous recessive genotype (aa) is 36%. Calculate the following: The frequency of the "aa" genotype a. b. The frequency of the "a" allele The frequency of the "A" allele c. d. The frequencies of the genotypes "AA" and "Aa"
3. You have sampled a population in which you know that the percentage of homozygous recessive genotype (aa) is 36%. Calculate the following: The frequency of the "aa" genotype a. b. The frequency of the "a" allele The frequency of the "A" allele c. d. The frequencies of the genotypes "AA" and "Aa"
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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Question
Transcribed Image Text:3. You have sampled a population in which you know that the percentage of homozygous
recessive genotype (aa) is 36%. Calculate the following:
a. The frequency of the "aa" genotype
b. The frequency of the "a" allele
c. The frequency of the "A" allele
d. The frequencies of the genotypes "AA".
and "Aa"
4. In humans, Rh-positive individuals have the Rh antigen on their red blood cells, while Rh-
negative individuals do not. If the Rh-positive phenotype is produced by a dominant gene
(4), and the Rh-negative phenotype is due to its recessive allele (a), what is the frequency of
the Rh-positive allele if 84% of a population is Rh-positive?
AA Or Aa
5. In 1775, a typhoon killed at least 90% of its people. One of the 20 survivors had
achromatopsia, a very rare genetically inherited recessive eye condition that causes total color
blindness and extreme sensitivity to light. Six generations later, 5% of the island's population
had achromatopsia. By comparison, only 1 in 33, 000 people in the US have it. Compare the
allelic and genotypic frequencies of both the US and the island.
US
Island
p=
p=
p=
2pq=
2pq=
q=
=b
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