THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What type of mutation results when a single nucleotide is exchanged for a different nucleotide?
|
|
deletion
|
|
|
addition
|
|
|
substitution
|
|
|
translocation
|
Explanation:
Detailed explanation-1: -Base substitutions are the simplest type of gene-level mutation, and they involve the swapping of one nucleotide for another during DNA replication.
Detailed explanation-2: -A nucleotide substitution results in a stop codon and consequently premature truncation of the protein. This protein is generally non-functional. This is known as a stop gain change or a nonsense variant (mutation).
Detailed explanation-3: -Substitution mutations are a type of mutation in which a single nucleotide is substituted with a different nucleotide. Examples of (base-pair) substitutions: a purine is substituted with a different purine (A
There is 1 question to complete.