Question

question 35
dna polymerase is an enzyme that.
a breaks dna down into fragments.
b deletes specific regions of dna.
c makes copies of dna.
d tightly winds dna into chromosomes.
e removes sugars from nucleotides to link them together.
question 36
pcr of a single str can produce ____ on a gel.
a one thick band
b one thin band
c two thin bands
d two thick bands
e one thick or two thin bands

Explanation:

DNA polymerase is an enzyme crucial for DNA replication, where it synthesizes new DNA strands complementary to the existing ones, effectively making copies of DNA. In PCR (Polymerase Chain Reaction) of a single Short - Tandem Repeat (STR), if an individual is homozygous for the STR allele, one thick band will be produced on the gel as both alleles are the same size. If heterozygous, two thin bands will be produced as there are two different - sized alleles.

Answer:

Question 35: C. makes copies of DNA.
Question 36: E. one thick or two thin bands