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Akimi4 [234]
2 years ago
7

Describe what role the components of the cell membrane play in defending the cell from viruses​

Biology
1 answer:
Varvara68 [4.7K]2 years ago
8 0

Answer:

dame coronita xfa lanesecito

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PCR (polymerase chain reaction) is an excellent method of generating copies of target DNA. If a single piece of double stranded
enyata [817]

Answer: After 3 rounds, 8 segments having 2 original strands on different segments will be present.

Explanation:

The polymerase chain reaction selectively and repeatedly copy the double stranded DNA (dsDNA) in the PCR machine.

1st round:

Single piece of double stranded DNA (dsDNA) unwinds in two seperate strands, before complementary nucleotides are synthesized to establish double helix.

2nd round:

The two dsDNA yields 4 segments before complementary nucleotides are synthesized

3rd round:

The four dsDNA yields 8 segments before complementary nucleotides are synthesized.

Therefore, at the end of 3 rounds, the two original strands will be present on the 8 different segments of copied DNA.

8 0
3 years ago
How does this map represent the significant deaths among the Native American population after the Europeans arrived in North
Alecsey [184]

Answer:

NUMEROUS DISEASES SPREAD

Explanation:

When Columbus stumbled upon the Americas, he and his crew were carrying numerous diseases, including smallpox, which killed 50% - 90% of the Native people's population.

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2 years ago
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Chemical energy changes into thermal energy and light energy

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