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balu736 [363]
3 years ago
7

Which of the following must happen first in order for DNA replication to occur?

Biology
1 answer:
Vilka [71]3 years ago
6 0

Answer: DNA is unwound.

Explanation:

DNA replication is the process where by two identical DNA copies are produced from a double stranded DNA molecule.

Before DNA will replicates, the double helix length of the DNA to be copied must be unwound, the two strands are separated and the hydrogen bond that link the paired bases are broken. Once the are unwound, they are held apart to expose the new bases so that hydrogen bond can link the nucleotides. The enzyme polymerase then join the new nucleotides into a new DNA strand that is complementary to the template.

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3 years ago
Which organisms synthesize carbohydrates, and in which cell organelle(s) does this synthesis occur?
ad-work [718]

Answer:

C

Explanation:

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Green plant are made up of Chlorophyll which are the green pigments that for trapping sunlight for the synthesis of starch to occur.

Photosynthesis is the process of synthesis of the starch.It involves the reaction of C02 with water  in the presence of sunlight  and enzymes to give oxygen as the byproduct, and Starch( carbohydrate) as the main product.

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3 years ago
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Question 2 (1 point) Plants absorb nutrients from soil, and nutrients help plants grow. Which level of organization best describ
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Which statement about the pancreas is not true?
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I think.

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