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DNA Replication and Chromosome Duplication
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Grade Level
Biology
10.48 DNA Replication and Chromosome Duplication
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A replication error changes one base on one newly synthesized strand of a duplicated chromosome, and repair does not fix it before mitosis. Which outcome is most precise?
A
Both homologous chromosomes instantly change in every cell of the body.
B
One sister chromatid may carry the changed sequence, so one daughter cell could inherit it after chromatid separation.
C
The mutation disappears automatically because sister chromatids cannot separate.
D
DNA polymerase converts the altered DNA base into an amino acid during mitosis.
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