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dusya [7]
3 years ago
5

Viruses need host cells to replicate true or false

Biology
1 answer:
andreev551 [17]3 years ago
3 0

Viruses depend on the host cells that they infect to reproduce. When found outside of host cells, viruses exist as a protein coat etc.

true.

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A student isolates, purifies, and combines in a test tube a variety of molecules needed for DNA replication. After adding some D
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DNA ligase

Explanation:

DNA replication is an enzyme mediated, 3-step process during which the DNA molecule produces a copy of itself. The 3 steps involved are as follows;

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<em>Initiation </em>involves the unwinding of the double helix structure of the DNA using DNA helicase enzyme

<em>Elongation</em> involves binding of RNA primer to the DNA strands and addition of bases to the primer<em> </em>to elongate the new chains. Bases are added to the leading strand continuously while the lagging strand is replicated in short segments (okazaki segments).

<em>Termination</em> involves the unbinding of RNA primer and substitution of its bases by DNA bases. The Okazaki fragments are then joined together using the DNA ligase enzyme.

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Hence, the answer is DNA ligase.

4 0
3 years ago
Consider this northern site of primary succession following the retreat of a glacier. What characteristics would you expect to s
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Answer this fast!TRUE ANSWERS ONLY!
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