Discuss how two of the following alter allele frequencies in populations: nonrandom mating, genetic drift, gene flow,
and natural selection What will be an ideal response?
Gene flow can alter allele frequencies in populations by introducing new genotypes to a
population.
Natural selection alters allele frequencies of a population by increasing the frequency of
adaptive traits in the next generation.
Genetic drift can alter allele frequencies by randomly eliminating alleles from a populati
You might also like to view...
Egg whites consist primarily of water and the protein albumin. When you fry an egg, why does the egg white turn from clear to white?
A. The protein becomes dissociated. B. The protein acquires tertiary structure. C. The protein becomes denatured. D. The protein becomes dehydrated.
A common way of studying methylation in cells is to sequence DNA samples before and after modification with sodium bisulfite
The sodium bisulfite deaminates Cytosine residues, generating Uracil residues, therefore resulting in a change in the sequence as compared to the non-modified DNA. Sodium bisulfite does not react with 5-methylcytosine so there will be no change in the sequence of those modified bases. When tumors are sequenced to study methylation patterns and epigenetic control, what would be the best control for sequencing using this technique? A. Non-cancerous tissue DNA from a different individual but from the same organ B. Liver DNA from the same individual that the cancer sample is from C. DNA from non-cancerous tissue from the same individual's organ as the cancer D. A combination of DNA from liver, brain and muscle from the same individual that has the cancer
A dihybrid test cross should always result in 50% of the progeny being recessive for both traits
Indicate whether the statement is true or false.
Which of the following is an endotherm?
a. a shark c. a monkey b. a frog d. a snake