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kifflom [539]
3 years ago
9

Which of the following best describes how meiosis helps maintain genetic variation?

Biology
1 answer:
s2008m [1.1K]3 years ago
5 0

Answer:

i believe its C

Explanation:

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An organism's genome is analyzed and found to contain 18% guanine. What percentage of that organism's DNA is adenine?
Oxana [17]

Answer:

32%

Explanation:

According to Chargaff in his complementary base pairing rule, he stated that the proportion of purine and pyrimidine bases is equal to 100%

That is, A + T + G + C = 100%

Where A=T and G=C i.e the proportion of each base pair is equal.

Hence, if the Guanine content is 18%, it means the Cytosine content of that DNA molecule must also be 18%. Therefore:

18 + 18 + A + T = 100

A + T = 100 - 36

A + T = 64

If the sum proportion of Adenine and Thymine is 64% and each must contain equal proportions, A or T = 64/2 = 32

Hence, Adenine contains 32%, likewise Thymine.

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3 years ago
The days are longer or shorter because the earth’s axis in blank
allochka39001 [22]

Answer: Orbit

Explanation: The Earth’s axis being in orbit means that the Earth is in different positions around the sun at different points in time, causing day and night.

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Which trophic level receives the least amount of energy?
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Tertiary consumer

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her arms are puffy , red and swollen

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