Question
One nitrogen base replaces another in a __ mutation. insertion deletion subsitution
Answer
4.4
(269 Votes)
Ezekiel
Master · Tutor for 5 years
Answer
C (substitution)
Explanation
## Step 1: The question is asking about a type of mutation where one nitrogenous base is replaced by another. This type of mutation is known as a base substitution mutation. ## Step 2: In contrast to base substitution mutations, deletion and insertion mutations alter the reading frame of the gene. A deletion or insertion mutation is when a number of nucleotides is removed or added to a DNA sequence that is not divisible by three. This disrupts the reading frame of the gene. ## Step 3: A frameshift mutation is a type of mutation that results from insertions or deletions of a number of nucleotides in a DNA sequence that is not divisible by three. This disrupts the reading frame of the gene. ## Step 4: Given the above explanations, the correct answer to the question is base substitution (C).