HEREDITY
MUTATIONS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
which of the following mutations results in the loss or addition of a single nucleotide, changing the DNA triplets
|
|
missense
|
|
|
nonsense
|
|
|
frameshift
|
|
|
silent
|
Explanation:
Detailed explanation-1: -A frameshift variant occurs when there is an addition or loss of nucleotides that shifts the grouping and changes the code for all downstream amino acids.
Detailed explanation-2: -A point mutation is going to change one nucleotide in the DNA code, this may or may not result in a changed amino acid. A missense mutation is always going to be a substitution of one amino acid for another.
Detailed explanation-3: -A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. A DNA sequence is a chain of many smaller molecules called nucleotides.
There is 1 question to complete.