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SOVA2 [1]
3 years ago
13

NAFTA was signed by Canada, the United States, and

Biology
2 answers:
Roman55 [17]3 years ago
6 0

Answer:

d

Explanation:

Lelu [443]3 years ago
4 0

Answer:

D. Mexico was the third one who signed.

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Watson and Crick proposed the semi-conservative hypothesis (later demonstrated by Meselson and Stahl in 1957), according to which new DNA molecules formed from an old one have an old and a new strand. This replication model assumed that the double helix DNA separates its two strands and each one serves as a template to synthesize a new strand following the complementary rules of nitrogenous bases. This model was called Semiconservative, since the two newly synthesized double helices have an old strand (an old half) and a new strand (a new half).

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Suppose a DNA test that predicted your chances of getting a disease, such as cancer, were available. You take the test for cance
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