In the Meselson-Stahl experiment, after the first round of replication, each daughter DNA duplex consists of:
Correct answer: C. Hybrid possessing heavy and light each
- A. Two heavy strands having N15
- B. Two light Strands having N14
- C. Hybrid possessing heavy and light each
- D. Not specified
Explanation
In the Meselson-Stahl experiment, after the first round of DNA replication, each daughter DNA duplex consists of a hybrid DNA molecule possessing both heavy and light strands. When this hybrid duplex is replicated during the second round of DNA replication, it contributes one heavy strand to form another hybrid duplex and one light strand to form a light duplex.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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