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Mariulka [41]
3 years ago
14

Which of the following is not a nutrient needed by the body?

Biology
1 answer:
Amiraneli [1.4K]3 years ago
6 0
Bodies need fat to protect organs and to keep the body warm

Bodies need carbohydrates because of the glucose they contain (fuel)

Nucleic acid makes up DNA

Water helps regulate temperature

All of these are needed by the body
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Which of the following statements about transposable genetic elements is NOT true?
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Answer:

C. They all use a cut and paste mechanism.

Explanation:

DNA transposons can go through a replicative or nonreplicative transposition.

The replicative transposition uses a "copy and paste" mechanism that consists of the introduction of a new copy of the transposable element in a new position, meanwhile <u>the old copy remains in the original position</u>. This determines an increase in the number of copies.

The nonreplicative transposition uses a "cut and paste" mechanism that consists of the cleavage of the transposable element from its position and its <u>insertion in a new position</u> without increasing the number of copies.

Retrotransposons, on the other side, move through RNA intermediates generated by the reverse transcriptase.

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