Question

1
why is it important for a cell to perform checks after dna replication?
a. errors in dna replication that occur in any cell type will always result in death of the cell.
b. if errors are not removed from areas with a gene, then the resulting lipids could be affected.
c. errors in dna replication that occur in any cell type will be passed to the offspring.
d. if errors are not removed from areas with a gene, then the resulting proteins could be affected.
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Explanation:

• Option A is incorrect because most replication errors are minor and do not cause cell death; cells have repair mechanisms for small errors.
• Option B is incorrect because genes code for proteins (not lipids), so errors in gene regions do not affect lipid production directly.
• Option C is incorrect because errors in somatic (body) cells are not passed to offspring; only errors in germline (reproductive) cells can be inherited.
• Option D is correct because genes contain the code for protein synthesis. Uncorrected errors in gene regions can alter the DNA sequence, which changes the mRNA transcript and ultimately the structure/function of the resulting protein.

Answer:

D. If errors are not removed from areas with a gene, then the resulting proteins could be affected.