HB 24 - Transcription, Translation & Mutations

The process by which the genetic code of DNA is copied into a strand of RNA is called (a)   .

What enzyme does transcription use?

• DNA polymerase

• ligase

• RNA polymerase

• helicase

Transcribe the following DNA sequence:

A-T-T-G-C-A.

• T-A-A-C-G-T
• U-A-A-C-G-T
• U-A-A-C-G-U
• T-A-A-G-C-U

Where does transcription take place in a eukaryotic cell?

• nucleus
• cytoplasm
• ribosome
• nucleoid

The portions of mRNA that are kept to translate into a protein are known as...

• Introns

• Exons

• Alternative Splicing

• Extrons

The portions of mRNA that are not needed to make a protein and are thus cut or spliced out are known as...

• Introns

• Exons

• Alternative Splicing

• Extrons

Label the Model of Transcription

a

b

c

RNA Polymerase

RNA

DNA

Which of these bases does not exist in RNA?

• C
• T
• U
• A

In RNA, A pairs with __

• T

• G

• C

• U

Explain the significance of alternative splicing in RNA processing.

• Alternative splicing only produces one protein version from a single gene

• Alternative splicing decreases the diversity of proteins that can be produced

• Alternative splicing has no significance in RNA processing

• Alternative splicing allows for the production of multiple protein versions from a single gene.