In what direction can a DNA polymerase work when catalyzing the addition of nucleotide monomers?
Correct answer: A. From the 5' toward the 3' end of the new strand
- A. From the 5' toward the 3' end of the new strand
- B. From the replication centers in two directions called replication forks
- C. From the 3' to the 5' end of the strand being assembled
- D. In both directions if DNA ligase is present
Explanation
DNA polymerase adds nucleotides to the 3′-OH end, meaning the new strand grows in the 5′ → 3′ direction.
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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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