Unit 6 AP Biology Part 1

Front

What is the function of the poly-A tail in mRNA?

Back

To help protect the mRNA from degradation by hydrolytic enzymes.

Front

Which of the following are pyrimidines?

Back

Cytosine and thymine.

Front

What does the production of mature mRNA in eukaryotes involve?

Back

Cutting introns out and splicing exons together, adding the 5' cap, and adding the 3' poly A tail.

Front

What describes the process of translation?

Back

Codon recognition, peptide bond formation, translocation.

Front

Where on the DNA does the enzyme responsible for transcription bind?

Back

Promoter.

Front

What are the three main components of a nucleotide?

Back

A phosphate group, a sugar, and a nitrogenous base.

Front

What is the role of RNA polymerase in transcription?

Back

To synthesize RNA from a DNA template.

Front

What is the difference between introns and exons?

Back

Introns are non-coding regions removed during mRNA processing, while exons are coding regions that remain.

Front

What is a codon?

Back

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

Front

What is the significance of the 5' cap on mRNA?

Back

It protects the mRNA from degradation and assists in ribosome binding during translation.