a. Answer the folllowing questions
When Mendel was examining inheritance of traits in peas, he discovered that the trait âtallâ was dominant to the trait âshortâ. Given what you know about dominant and recessive traits, what do you think is happening at the molecular level to account for the pattern Mendel observed? Why is tall dominant to short? (You should be thinking about loss of function/gain of function as you try to answer this question.)
Recent mutations will tend to be in linkage disequilibrium with alleles located close to them on a chromosome. You discover a mutation that is dominant and harmful. Would you expect it to be in linkage disequilibrium with near-by alleles?
As population size increases, you would also expect which of the following to increase? (There may be more than one correct answer.)
a.Heterozygosity
b.Genetic drift
c.The number of alleles present in the population
d.Inbreeding
Is it possible for a mutation in the first position of a codon not to change the amino acid that the codon codes for?
In general, women have better color vision than males in the: (More than one answer may be correct.)
a.The red portion of the light spectrum
b.The blue portion of the light spectrum
c.The green portion of the light spectrum
Suppose a man had better color vision than a woman (assume both have normal color vision). What portion of the light spectrum would you expect it to be in? (More than one answer could be correct.)
a.Blue
b.Green
c.Yellow
d.Red
Explain why a man is more likely to have âgreenâ color-blindness than a woman. Is a man more likely to have âblueâ color-blindness than a woman?
Is normal color vision dominant to color-blindness? What do you think happens at the molecular level when a mutation causes color-blindness?
What is a SNP? What is an indel? Which would be likely to be worse in a protein coding sequence?
How similar are the chimp and human genomes? What portion of the human genome is thought to be under selection?