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18 votes
18 votes
While the DNA in a human skin cell was being replicated, a single base was miscopied. What will be the most likely result of this for the cell in which it happened?

User Wim Feijen
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1 Answer

12 votes
12 votes

The question lack the option associated with the question that are :

All the proteins the cell creates from the miscopied strand will do different jobs than the old ones.

Any miscopied DNA will be replaced with an accurate DNA copy once the cell divides.

Both new DNA strands will end up together in a new cell, and the inaccurate one will be discarded.

If the new sequence codes for the same amino acid as the original cell, it will function normally.

Answer:

The correct answer would be - If the new sequence codes for the same amino acid as the original cell, it will function normally.

Step-by-step explanation:

The first option can not be true if a mismatch takes place on the intron level of the gene which is splice out and does not produce protein.

The second option can not be possible as every new daughter strand has one new and one original strand due to the semi-conservative replication.

The third option is false as mismatch takes place before cell division.

Thus, the correct answer would be - option 4.

User Josh Cole
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3.1k points
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