12-Human Mendelian Traits & Hardy-Weinberg Equilibrium 6. Use the Hardy-Weinberg equations to estimate the number of people in the class with each genotype. 2²2² = ¾/3 = 1=1/12 a. Start by finding q, the frequency of the homozygous recessive genotype (tt). 9=√133=0.577 # of non-tasters total number of people 15 P+9 = 1 -> p = 1- q = 0.423 p² = 0.179. 2pq=0.488 b. Take the square root of q? to find q, the frequency of the recessive allele in the population (). 9² 160 c. Since p + q = 1, you can solve for p, the frequency of the dominant allele in the population (7). d. Now use the other form of the equation to find the other genotype frequencies: p² + 2pq+q² = 1 TT frequency=p² = Tt frequency=2pq= tt frequency =q² =__ (you already have this one) - As a check on your work, these three values should add up to 1.
12-Human Mendelian Traits & Hardy-Weinberg Equilibrium 6. Use the Hardy-Weinberg equations to estimate the number of people in the class with each genotype. 2²2² = ¾/3 = 1=1/12 a. Start by finding q, the frequency of the homozygous recessive genotype (tt). 9=√133=0.577 # of non-tasters total number of people 15 P+9 = 1 -> p = 1- q = 0.423 p² = 0.179. 2pq=0.488 b. Take the square root of q? to find q, the frequency of the recessive allele in the population (). 9² 160 c. Since p + q = 1, you can solve for p, the frequency of the dominant allele in the population (7). d. Now use the other form of the equation to find the other genotype frequencies: p² + 2pq+q² = 1 TT frequency=p² = Tt frequency=2pq= tt frequency =q² =__ (you already have this one) - As a check on your work, these three values should add up to 1.
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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Transcribed Image Text:12-Human Mendelian Traits & Hardy-Weinberg Equilibrium
Use the Hardy-Weinberg equations to estimate the number of people in the class with each genotype.
2²2² = ¾/3 = 1 =1/12
a. Start by finding q², the frequency of the homozygous recessive genotype (tt).
5
9=√13=0.577
# of non-tasters
total number of people
15
P+9 = 1 -> p = 1-9
= 0.423
2pq=0.488
pa= 0.179
b. Take the square root of q' to find q, the frequency of the recessive allele in the population (1).
9²
C. Since p + q = 1, you can solve for p, the frequency of the dominant allele in the population (7).
e.
d. Now use the other form of the equation to find the other genotype frequencies: p² + 2pq+q² = 1
TT frequency=p²=_
Tt frequency = 2pq=
tt frequency = q² =
(you already have this
As a check on your work, these three values should add up to 1.
Calculate how many in the population have each genotype by multiplying each frequency by the
total number in the population.
3
# of TT people = p² x total number of people:
# of Tt people = 2pq x total number of people = 7
# of tt people = q2 x total number of people = 5
7. Did the data support your working or null hypothesis regarding your own ability to taste PTC?
8. Did the data support your working or null hypothesis regarding the frequency of PTC tasters in the
class?
9. Record your personal phenotypes and potential genotypes for the other traits.
Trait
160
Red-green color blindness
Widow's peak
Attached earlobes
Mid-digit hair
Your phenotype
Your potential genotype(s)
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