AP Biology Gene Expression & Regulation

Front

What is required for transcription to begin in eukaryotic cells?

Back

Transcription factors must bind to the promoter.

Front

What is the significance of the TATA box in eukaryotic promoters?

Back

It is the recognition site for a specific transcription factor.

Front

What is epigenetic inheritance?

Back

An inheritance pattern where a nuclear gene is modified, but the changed expression is not permanent over generations.

Front

What type of operon causes transcription of genes in a catabolic pathway?

Back

Inducible operon.

Front

What enzyme seals Okazaki fragments together?

Back

Ligase.

Front

Define transcription in the context of gene expression.

Back

The process of copying a segment of DNA into RNA.

Front

What role do transcription factors play in gene expression?

Back

They help initiate and regulate the transcription of specific genes.

Front

What is the function of RNA polymerase?

Back

It synthesizes RNA from a DNA template during transcription.

Front

What is the difference between an intron and an exon?

Back

Introns are non-coding regions of a gene, while exons are coding regions that are expressed.

Front

What is the role of the promoter in gene expression?

Back

It is a DNA sequence that initiates transcription of a particular gene.