U6 Gene Regulation and Expression Practice

Front

What is Reverse Transcriptase?

Back

An enzyme found in retroviruses that produces DNA from RNA templates.

Front

What happens to pre-mRNA to become mRNA?

Back

Noncoding sequences are removed.

Front

What does a premature stop codon indicate?

Back

It indicates that translation ended early, resulting in a shorter amino acid sequence.

Front

Why do different cells produce different proteins?

Back

Cells transcribe and translate different combinations of genes, leading to the production of different proteins.

Front

What is the role of tRNA in protein synthesis?

Back

tRNA delivers amino acids to the ribosome to form peptide bonds with the growing polypeptide chain.

Front

What is gene expression?

Back

The process by which information from a gene is used to synthesize a functional gene product, usually a protein.

Front

What is the function of RNA polymerase?

Back

An enzyme that synthesizes RNA from a DNA template during transcription.

Front

What are introns?

Back

Noncoding sequences in pre-mRNA that are removed during RNA processing.

Front

What is the significance of codons?

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Codons are sequences of three nucleotides in mRNA that specify a particular amino acid.

Front

What is the central dogma of molecular biology?

Back

The flow of genetic information from DNA to RNA to protein.