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

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

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

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

Question

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?
A. All the proteins the cell creates from the miscopied strand will do different jobs than the old ones.
		
B. Any miscopied DNA will be replaced with an accurate DNA copy once the cell divides.
		
C. Both new DNA strands will end up together in a new cell, and the inaccurate one will be discarded.
		
D. If the new sequence codes for the same amino acid as the original cell, it will function normally.

blues · Answer

It helps us help you understand the question (and the answer) if you tell us what exactly you don't understand about the question as well as posting the question itself.

That said, I think the answer is D. Each amino acid is coded for by more than one codon, so if the mutation changes the DNA without changing the protein sequence, the mutant protein will have the same structure and function as the non-mutant protein.

Clear?

anonymous · Answer

Hi, sorry for the late reply. This was my first question I asked on here, so I was a little unsure "how" to ask it. This is actually a question from a while ago, and I figured it out after I had posted this, and kind of forgot that I had posted this. Thanks for your input though!

anonymous · Answer

@Miracrown  Help?

anonymous · Answer

@Teddyiswatshecallsme What do you think?

anonymous · Answer

@nincompoop