BIO 434 Assignment 4
1. If a particular locus mutates from Z to z at a rate 3 x 10-6 and from z to Z at rate 6 x
10-8, what is the equilibrium allele frequency of Z in an infinitely large population, with
no selection or migration?
The frequency is given
1. Prove that the equilibrium allele frequency with heterozygote advantage (1-s:1:1-t) is
equal to t/(s+t).
p 2 w11 + pqw12
, and find the equilibrium by setting
p 2 w11 + 2 pqw12 + q 2 w 22
p' to p. The relative fitness of each genotypes are w11 = 1-s, w
Name: I
\l: V
Student number:
MID-TERM BIOL 434/509: October 2014
Points
Q1 1 8
Q2 12
Q3 10
Q4 18
Q5 22
Q6 15
Q7 5
Total 100
Check that your copy of the test has all 7 pages.
The following are UBC's rules governing formal examinations:
1)Each candidate mu
FINAL EXAM BIO 434: PREVIOUS YEAR
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Points
16
12
10
7
10
8
5
10
10
12
1. A population of Darwins finches in the Galpagos has been studied for a very long
time by Peter and Rosemary Grant from Princeton. They have marked every
OLD FINAL KEY BIOL 434
1. a. R= h2 S. h2 0.82, S = 9.96-9.42= 0.54, Therefore R = (0.82)(0.54) = 0.44.
Therefore the new mean is expected to be 9.42+0.44 = 9.86.
1b. The true value could be different for a number of reasons. The heritability is
estimated