3. Explain how gel electrophoresis can help us draw conclusions about species similarity. please help me pleas!!1

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

the answer to your question is:

c. complementary base-pairing

i think this picture will you.