SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Replication
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Transcription
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Translation
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Mutation
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Detailed explanation-1: -DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
Detailed explanation-2: -Each strand of the original DNA molecule then serves as a template for the production of its counterpart, a process referred to as semiconservative replication. As a result of semi-conservative replication, the new helix will be composed of an original DNA strand as well as a newly synthesized strand.
Detailed explanation-3: -During S phase (synthesis phase), DNA undergoes replication and makes a copy of itself. Hence, the content of DNA doubles during S phase. Each chromosome after DNA replication will have two chromatids and there is no change in the chromosome number.