First step in DNA replication is:
Correct answer: B. Unwinding
- A. Addition of primer
- B. Unwinding
- C. Polymerization
- D. Rewinding
Explanation
Helicase unwinds the double helix, separating the strands to allow replication.
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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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