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klemol [59]
3 years ago
6

SOMEONE PLZ ANSWER ASAP!!!!

Biology
1 answer:
Serga [27]3 years ago
3 0

Answer:

C

Viruses need a host to survive.

Explanation:

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Explanation:

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A new DNA strand elongate only in the 5' to 3' direction during DNA replication because the  "polarity of the DNA molecule prevents addition of nucleotides at the 3' end" .

DNA replication occurs in the 5' to 3' direction. DNA polymerase can only add nucleotides to the 3' OH group of the growing DNA strand, this is why DNA replication occurs only in the 5' to 3' direction.

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Nitrogen is a very important element in biology. What are some of the reasons that organisnm needs nitrogen?
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