Unit 3: Protein Synthesis, Mutations, Gene Expression

Front

Where does translation occur?

Back

Ribosomes

Front

What is the resulting mRNA from the DNA sequence GAT-TAC-AGA-TTA-CAT?

Back

CUA-AUG-UCU-AAU-GUA

Front

What is a substitution mutation that has no effect on amino acid sequence called?

Back

Silent mutation

Front

When does gene expression occur?

Back

The gene is activated and used in protein synthesis.

Front

What process is shown in the diagram of transcription?

Back

Transcription is the process of copying a segment of DNA into RNA.

Front

What is the role of ribosomes in protein synthesis?

Back

Ribosomes are the sites where translation occurs, synthesizing proteins from mRNA.

Front

Define transcription in the context of protein synthesis.

Back

Transcription is the process of converting DNA into mRNA.

Front

What is a missense mutation?

Back

A missense mutation is a change in a single nucleotide that results in a different amino acid.

Front

What is a nonsense mutation?

Back

A nonsense mutation is a change in a nucleotide that creates a premature stop codon.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil.