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Question 2: According to the generaized selection model, the change in allelic frequency due to the action of selection (delta p) depends on the frequencies in the population (values of p and q) and the selection regime (values of w for each allele), made relative to the mean fitness in the population. Consider the following two populations under two different selection regimes. Note that s1 and s2 correspond to the selection coefficients associated with each allele, and that the values of mean fitness in the population are given in each case. Population 1 Population 1 Selection regime A p=q=0.5 $1=0; s2=0.5 Mean w=0.875 Population 2 Selection regime A p=0.05 q=0.95 $1=0; $2= 0.5 Mean w=0.549 Selection regime B p=q=0.5 $1=0; s2= 0.8 Mean w=0.8 Population 2 Selection regime B p=0.05 q=0.95 $1=0; s2=0.8 Mean w=0.488 With the data provided above make predictions about the amount of change due to selection in each case to complete the following statements (you do not need to do calculations for this, the mean fitness is provided just in case you want to do it but it is not needed and it will use up time): Population 1 will change allelic frequencies more under selection regime Population 2 will change allelic frequencies more under selection regime This is because Selection regime A will cause more change in allelic frequencies in population Selection regime B will cause more change in allelic frequencies in population This is because than under selection regime than under selection regime than in population than in population

Question 2: According to the generaized selection model, the change in allelic frequency due to the action of selection (delta p) depends on the frequencies in the population (values of p and q) and the selection regime (values of w for each allele), made relative to the mean fitness in the population. Consider the following two populations under two different selection regimes. Note that s1 and s2 correspond to the selection coefficients associated with each allele, and that the values of mean fitness in the population are given in each case. Population 1 Population 1 Selection regime A p=q=0.5 $1=0; s2=0.5 Mean w=0.875 Population 2 Selection regime A p=0.05 q=0.95 $1=0; $2= 0.5 Mean w=0.549 Selection regime B p=q=0.5 $1=0; s2= 0.8 Mean w=0.8 Population 2 Selection regime B p=0.05 q=0.95 $1=0; s2=0.8 Mean w=0.488 With the data provided above make predictions about the amount of change due to selection in each case to complete the following statements (you do not need to do calculations for this, the mean fitness is provided just in case you want to do it but it is not needed and it will use up time): Population 1 will change allelic frequencies more under selection regime Population 2 will change allelic frequencies more under selection regime This is because Selection regime A will cause more change in allelic frequencies in population Selection regime B will cause more change in allelic frequencies in population This is because than under selection regime than under selection regime than in population than in population

Human Anatomy & Physiology (11th Edition)
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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Question 2: According to the generaized selection model, the change in allelic frequency due to the action of selection (delta p) depends on the frequencies in the population (values of p and q) and the selection regime (values of w for each allele), made relative to the mean fitness in the population. Consider the following two populations under two different selection regimes. Note that s1 and s2 correspond to the selection coefficients associated with each allele, and that the values of mean fitness in the population are given in each case. Population 1 Population 1 Selection regime A p=q=0.5 s1=0; s2= 0.5 Mean w=0.875 Population 2 Selection regime A p=0.05 q=0.95 $1=0; s2= 0.5 Mean w=0.549 Selection regime B p=q=0.5 s1=0; s2= 0.8 Mean w=0.8 Population 2 Selection regime B p=0.05 q=0.95 $1=0; s2= 0.8 Mean w=0.488 With the data provided above make predictions about the amount of change due to selection in each case to complete the following statements (you do not need to do calculations for this, the mean fitness is provided just in case you want to do it but it is not needed and it will use up time): Population 1 will change allelic frequencies more under selection regime Population 2 will change allelic frequencies more under selection regime This is because Selection regime A will cause more change in allelic frequencies in population Selection regime B will cause more change in allelic frequencies in population This is because than under selection regime than under selection regime than in population than in population
Transcribed Image Text:Question 2: According to the generaized selection model, the change in allelic frequency due to the action of selection (delta p) depends on the frequencies in the population (values of p and q) and the selection regime (values of w for each allele), made relative to the mean fitness in the population. Consider the following two populations under two different selection regimes. Note that s1 and s2 correspond to the selection coefficients associated with each allele, and that the values of mean fitness in the population are given in each case. Population 1 Population 1 Selection regime A p=q=0.5 s1=0; s2= 0.5 Mean w=0.875 Population 2 Selection regime A p=0.05 q=0.95 $1=0; s2= 0.5 Mean w=0.549 Selection regime B p=q=0.5 s1=0; s2= 0.8 Mean w=0.8 Population 2 Selection regime B p=0.05 q=0.95 $1=0; s2= 0.8 Mean w=0.488 With the data provided above make predictions about the amount of change due to selection in each case to complete the following statements (you do not need to do calculations for this, the mean fitness is provided just in case you want to do it but it is not needed and it will use up time): Population 1 will change allelic frequencies more under selection regime Population 2 will change allelic frequencies more under selection regime This is because Selection regime A will cause more change in allelic frequencies in population Selection regime B will cause more change in allelic frequencies in population This is because than under selection regime than under selection regime than in population than in population
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