test 1 Flashcards
1
Q
4 sources of genetic variation
A
formation of new alleles, altering gene number or position, rapid reproduction, sexual reprduction
2
Q
hardy weinberg equilibrium equation?
A
p^2 + 2pq + q^2 =1
3
Q
“point mutation” ? example?
A
change in one base of a gene, i.e. sick cell
4
Q
The duplication of genes is due to errors in what?
A
meiosis
5
Q
if gene duplications do not have severe effects it can persist over generations… this leads to?
A
accumulation of mutation, expands genome i.e.) smell receptors
6
Q
three mechanisms in sexual reproduction that contribute to shuffling of genes
A
crossing over, independent assortnment of chromosomes, fertilization
7
Q
When only two alleles and 2 genotypes possible, what equation is true?
A
p+q=1
