Answer:
cell is a unit that can live on its own and makes up all living organism and the tissue of the body
Explanation:
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Answer:
D. 3' hydroxyl group
Explanation:
The polymerization activity of DNA polymerases works in 5' to 3' direction only. This means that the DNA polymerase can add new deoxyribonucleotides to the free 3' end of the primer or existing DNA strands only. The 3' end of DNA has a free OH group that exhibits the nucleophile attack on the incoming nucleotide. The free phosphate group is present on the 5' end of a DNA strand. Therefore, DNA polymerase always adds new nucleotides to the 3' OH ends (OH= hydroxyl group).
Connected to the occipital bones
C, Both types of organisms contain exactly the same four nitrogen bases, but in different sequences and numbers.
Material that mostly makes up bacterial cell walls is petidoglycan