Gene Expression

Front

What is the enzyme that unzips DNA at a single gene to start transcription?

Back

RNA polymerase

Front

Why do specialized cells regulate the expression of genes?

Back

Because they do not need the proteins that are specified by certain genes.

Front

What are sections of the mRNA strand that get fused together and are used to make a protein?

Back

Exons

Front

What does gene regulation in eukaryotes allow for?

Back

Cell specialization.

Front

What is a long chain of amino acids bonded together that usually makes up part of a protein?

Back

Polypeptide

Front

What is the role of RNA polymerase in gene expression?

Back

It synthesizes RNA from the DNA template during transcription.

Front

What are introns?

Back

Non-coding sections of an mRNA strand that are removed during RNA processing.

Front

What is a codon?

Back

A sequence of three nucleotides in mRNA that codes for a specific amino acid.

Front

What is the function of a promoter in gene expression?

Back

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

Front

What is the difference between prokaryotic and eukaryotic gene regulation?

Back

Eukaryotic gene regulation is more complex and allows for cell specialization.