Question

what is a mutation?
a type of ribosome
a process of making rna
a change in the protein shape only
a change in the dna sequence
question 14
which mutation type changes one amino acid in a protein?
nonsense mutation
missense mutation
silent mutation
frameshift mutation

Explanation:

First Question (What is a mutation?):

• "A type of ribosome" is incorrect as ribosomes are cellular structures for protein synthesis, not related to mutation.
• "A process of making RNA" is transcription, not mutation.
• "A change in the protein shape only" is wrong; mutation starts with DNA changes, not just protein shape.
• "A change in the DNA sequence" is the correct definition of mutation.

• Nonsense mutation introduces a stop codon, truncating the protein.
• Missense mutation changes one codon to another, resulting in one amino acid change in the protein.
• Silent mutation changes a codon but not the amino acid (due to codon degeneracy).
• Frameshift mutation shifts the reading frame, altering many amino acids.

Answer:

D. A change in the DNA sequence

Question 14 (Which mutation type changes one amino acid in a protein?):