Question

question 3
10 point
strs are.
a single tandem repeats.
b sequence tandem reactants.
c single technique runs.
d short tandem repeats.
e several tandem repeats.
question 4
10 point
dna can generally be extracted from.
a hair.
b blood.
c saliva.
d skin cells.
e all of the above.

Explanation:

STRs stand for short tandem repeats, which are short DNA sequences that are repeated in tandem. DNA can be extracted from hair, blood, saliva, and skin cells as they all contain genetic material.

Answer:

Question 3: D. short tandem repeats.
Question 4: E. All of the above.