Question

question 7
10 points
a parent gives half their dna to their child. this means that when 10 strs are studied, at least ____ bands will be identical on a gel comparing one parent and child.
a 5
b 10
c 20
d more than 20
e 5 but no more than 10
question 8
10 points
the enzyme that attaches nucleotides together during dna replication is known as ____.
a helicase
b reverse transcriptase
c dna replicase
d dna polymerase

Explanation:

For Question 7, since a parent gives half their DNA to a child, out of 10 STRs, at least 5 will be identical. For Question 8, DNA polymerase is the enzyme that attaches nucleotides together during DNA replication. Helicase unwinds DNA, reverse - transcriptase makes DNA from RNA, and there's no enzyme called DNA replicase.

Answer:

Question 7: A. 5
Question 8: D. DNA polymerase