AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the original DNA sequence is:ACC TGA TGT. What mutation happened in this sequence:AAC CTG ATG T
A
Deletion
B
Insertion
C
Substitution
D
None of these
Explanation: 

Detailed explanation-1: -If cytosine is added in the beginning, the nucleotide becomes : CAT GAT GAT G. The complementary base pairs are-GTA CTA CTA C.

Detailed explanation-2: -Therefore, frameshift mutations result in abnormal protein products with an incorrect amino acid sequence that can be either longer or shorter than the normal protein.

Detailed explanation-3: -If a DNA sequence is altered from TAGCTGA to TAGTGA, what kind of mutation has occurred? Deletion. Which mutation(s) would not change the remainder of the reading frame of a gene sequence that follows the mutation(s)? One addition and one deletion mutation.

There is 1 question to complete.