Why is accurate replication of DNA important?
(A) It leads to cell differentiation - HSC - SSCE Biology - Question 14 - 2004 - Paper 1
Question 14
Why is accurate replication of DNA important?
(A) It leads to cell differentiation.
(B) It maintains genetic information.
(C) It allows for evolution of the speci... show full transcript
Worked Solution & Example Answer:Why is accurate replication of DNA important?
(A) It leads to cell differentiation - HSC - SSCE Biology - Question 14 - 2004 - Paper 1
Step 1
It leads to cell differentiation.
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Answer
Accurate DNA replication is not primarily concerned with cell differentiation. While differentiation occurs as a result of gene expression regulated by genetic information, it is not the main reason for ensuring accurate DNA replication.
Step 2
It maintains genetic information.
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Answer
This statement is crucial as accurate replication of DNA ensures that the genetic information contained within the DNA is preserved and passed on to daughter cells during cell division. This fidelity is essential for maintaining the integrity of an organism's genetic code.
Step 3
It allows for evolution of the species.
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While accurate DNA replication is essential for the stability of genetic information, mutations that arise from errors during replication can contribute to evolution. However, this is more about variability than the importance of accuracy.
Step 4
It enables cells to modify their proteins.
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Accurate replication does not directly enable cells to modify their proteins. This process is primarily regulated by gene expression rather than the replication of DNA itself.
