LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where in the cell does DNA replication occur?
A
always the cytoplasm
B
always the nucleus
C
in the cytoplasm in eukaryotes and the nucleus in prokaryotes
D
in the cytoplasm in prokaryotes and the nucleus in eukaryotes
Explanation: 

Detailed explanation-1: -DNA replication occurs in the nucleus in eukaryotes, whereas in cytoplasm in prokaryotes.

Detailed explanation-2: -By housing the cell’s genome, the nucleus serves both as the repository of genetic information and as the cell’s control center. DNA replication, transcription, and RNA processing all take place within the nucleus, with only the final stage of gene expression (translation) localized to the cytoplasm.

Detailed explanation-3: -DNA replication occurs in the cytoplasm of prokaryotes and in the nucleus of eukaryotes. Regardless of where DNA replication occurs, the basic process is the same. The structure of DNA lends itself easily to DNA replication. Each side of the double helix runs in opposite (antiparallel) directions.

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