Hey there! :D
A verb phrase is a phrase that defines the action. It contains the verb in the sentence.
"walked" is the verb, so "A" Have walked, is the answer.
I hope this helps!
~kaikers
Answer:A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.
Explanation:
The answer would be C.mountains
DNA polymerase adds nucleotides at the 3' primer end of the DNA. This DNA polymerase checks the newly added base has correctly paired with the base in the template strand or not. Based on this it adds the new nucleotide.
<h3>What is nucleotide?</h3>
Nucleotide is the nucleoside with a phosphate group. It generally stack or link with each other to make a polynucleotide chain.
DNA polymerase adds these nucleotides one by one to the 3' primer end on the DNA strand.
It usually checks the correct pairing of the base with the template strand and then adds the new nucleotide to it.
Thus, by this step DNA polymerase choose nucleotides to put into the new strand.
For more details regarding DNA polymerase, visit:
brainly.com/question/14315652
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