Answer:
The correct answer is B An enzyme binds to the substrate at enzyme"s substrate site.
Explanation:
Enzyme is proteinecious in nature and act as homogenous biological catalyst.Enzyme contain an active site or substrate binding site to which specific substrate binds.
The active site of an enzyme contain many amino acids such as cystein,histidine,aspartic acid ,glutamic acid.These amino acids contain functional groups such as -SH group,-OH group,-COOH group. These functional group facilitate the binding of substrate to the active site of an zymes.
Answer:
Explanation:
Rather than use X-ray-based gel electrophoresis, today's forensic scientists measure the size of DNA fragments with a technique called capillary electrophoresis. Small fragments travel more quickly than large fragments through a gel-like material.
Answer:
C. double helix
Explanation:
Watson and Crick discovered that DNA molecules are double-helical structures. According to them, each DNA molecule has two DNA strands that are wound around an imaginary axis to form a double helix. These two DNA strands are held together by complementary base pairing between their bases. They discovered that a purine base pairs with a pyrimidine base to maintain a constant distance between the two strands of a double helix.
Answer:
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