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fredd [130]
3 years ago
14

What must happen before meiosis can begin? A. Four gametes must be produced b. The four tetrads must be pulled apart c. Dna doub

les and produces sister chromatids d. The cell membrane pinches together
Biology
2 answers:
Nadusha1986 [10]3 years ago
4 0

Answer:C, dna doubles and produces sister chromatids

Explanation:

Paha777 [63]3 years ago
3 0

Answer:

C

Explanation:

The DNA first needs to duplicate in stage Interphase-1.

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In humans, the condition for normal blood clotting (H) dominates the condition for non clotting (hemophilia) (h). Both alleles a
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Answer:

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Explanation:

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Male: Xh and Y

Female: XH and Xh

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XH      XHXh                     XHY

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Xh        XhXh                    XhY

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Thus, the chances of normal son is 50% among sons

8 0
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What atoms make up sugar molecules, amino acids, and fatty acids?
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