EBIO 2070 Exam 2 Questions and Correct
Answers
In guinea pigs, white coat (w) is recessive to black coat (W) and wavy hair (v) is recessive to
straight hair (V). A breeder crosses a guinea pig that is homozygous for white coat and
wavy hair with a guinea pig homozygous for both straight and black hair. The F1 are then
crossed with guinea pigs having white coats and wavy hair, and 83 offspring were
produced, and the genotypes were placed into a chi-square test of independence:
The critical value for this test is 3.8 -- calculate the value of chi-square. What would you
conclude from these data and your value of chi-square:
W and V are on the same chromosome
Silas is breeding racing turtles, and he has discovered several traits, each determined by 2
alleles with dominance. This chart shows the genes, alleles and the traits that they code for.
a) Which gametes are non-recombinant?
OPq and opQ
b) Which gametes are double recombinant?
OPQ and opq
c) What is the order of the genes (simply choose the gene that is in the middle)?
Q
d) How many centiMorgans between O and P?
50 cM
Which of the following statements is not true?
Oxidative phosphorylation capacity is constant throughout a person's lifetime.
Transduction is accomplished by:
Answers
In guinea pigs, white coat (w) is recessive to black coat (W) and wavy hair (v) is recessive to
straight hair (V). A breeder crosses a guinea pig that is homozygous for white coat and
wavy hair with a guinea pig homozygous for both straight and black hair. The F1 are then
crossed with guinea pigs having white coats and wavy hair, and 83 offspring were
produced, and the genotypes were placed into a chi-square test of independence:
The critical value for this test is 3.8 -- calculate the value of chi-square. What would you
conclude from these data and your value of chi-square:
W and V are on the same chromosome
Silas is breeding racing turtles, and he has discovered several traits, each determined by 2
alleles with dominance. This chart shows the genes, alleles and the traits that they code for.
a) Which gametes are non-recombinant?
OPq and opQ
b) Which gametes are double recombinant?
OPQ and opq
c) What is the order of the genes (simply choose the gene that is in the middle)?
Q
d) How many centiMorgans between O and P?
50 cM
Which of the following statements is not true?
Oxidative phosphorylation capacity is constant throughout a person's lifetime.
Transduction is accomplished by:
