<span>The answer is A. This is because the P53 gene is involved in a cell cycle regulation and is thought to hold the cell in a particular phase until DNA defects are repaired. </span>
Answer:
having traits that help a single organism survive
A mammals need for oxygen effects their heart rate because there could be some cases where they're in lack of oxygen causing them to be literally ' out of breath ' . Like climbing a mountain. The higher you go the less oxygen.
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Answer:
the answer would be chromosomes.
Explanation:
A chromosome contains hundreds to thousands of genes.
The answer is C because the chart shows that it produces more or less.
