GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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replicates in a semiconservative fashion
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is composed of nucleotides
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codes for the amino acid sequences of proteins
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is the genetic material
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Detailed explanation-1: -Conclusion. The experiment done by Meselson and Stahl demonstrated that DNA replicated semi-conservatively, meaning that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand.
Detailed explanation-2: -The heavier strand represents the parents stand and the lighter is the new one synthesized from the culture indicating the semiconservative mode of DNA replication. This proved semiconservative mode of DNA replication.
Detailed explanation-3: -DNA replication is said to be semi-conservative because of the process of replication, where the resulting double helix is composed of both an old strand and a new strand. Each strand of the double helix DNA would serve as a template for synthesis of a new strand.
Detailed explanation-4: -Meselson and Stahl experiment proved that DNA replicates semi-conservatively, which means that each of its strands acts as a template for the synthesis of a new, complementary strand.
Detailed explanation-5: -Meselson and Stahl used an isotope to demonstrate the semiconservative nature of DNA duplication.