Mutation & Protein Synthesis

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

Front

What is a frameshift mutation?

Back

A frameshift mutation occurs when nucleotides are inserted or deleted from the DNA sequence, altering the reading frame of the codons.

Front

What is the difference between a point mutation and a frameshift mutation?

Back

A point mutation involves a change in a single nucleotide, while a frameshift mutation involves the insertion or deletion of nucleotides, affecting all subsequent codons.

Front

What is transcription?

Back

Transcription is the process of copying a segment of DNA into RNA, specifically messenger RNA (mRNA), which occurs in the nucleus.

Front

Where does translation occur in the cell?

Back

Translation occurs in the cytoplasm at the ribosome.

Front

What is the role of tRNA in protein synthesis?

Back

tRNA (transfer RNA) brings amino acids to the ribosome during translation, matching its anticodon with the corresponding codon on the mRNA.

Front

What is an anticodon?

Back

An anticodon is a sequence of three nucleotides on tRNA that is complementary to a corresponding codon on mRNA.

Front

What is a codon?

Back

A codon is a sequence of three nucleotides on mRNA that codes for a specific amino acid.

Front

What is a point mutation?

Back

A point mutation is a change in a single nucleotide in the DNA sequence, which can result in a different amino acid being incorporated into a protein.

Front

What is a missense mutation?

Back

A missense mutation is a type of point mutation where a single nucleotide change results in a codon that codes for a different amino acid.