Answer:
The nitrogen bases can only pair in a certain way: A pairing with T and C pairing with G. Due to the base pairing, the DNA strands are complementary to each other, run in opposite directions, and are called antiparallel strands.
Explanation:
Answer:
1.true
2.false
Explanation:
the only time blood coagulates is when an incompatible blood group comes in contact with it due to the effect of antibodies
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