Question

the process of amplifying a specific piece of dna.
a. rna
b. str
c. pcr
d. sop
e. qrt
value: 10
why do you have two copies of dna at each locus?
a. they did not separate properly in cell division
b. one from each parent
c. radiation causes dna to mutate
d. rna was not present
value: 10
if a child is 14, 16 for the tpa locus. which of the following could be the father.
a. jonnie 12, 16 for the tpa locus
b. steve 14, 23 for the tpa locus
c. bob 14, 16 for the tpa locus
d. ralph 9, 16 for the tpa locus
e. any of these individuals could be the father
value: 10
in gel electrophoresis which samples move the furtherest in the gel
a. large samples
b. small samples

Explanation:

1. PCR (Polymerase Chain Reaction) is used to amplify a specific piece of DNA.
2. Humans are diploid organisms, getting one copy of DNA at each locus from each parent.
3. For the TPA locus, a father must have at least one of the alleles present in the child. All the given potential - fathers have either 14 or 16 or both.
4. In gel electrophoresis, smaller samples move further through the gel matrix due to less resistance.

Answer:

1. c. PCR
2. b. One from each parent
3. e. Any of these individuals could be the father
4. b. small samples