RNA and Gene Expression

Which sequence of complementary DNA bases would pair with this partial strand ATG TGA CAG?

• ATG TGA CAG

• GTA AGT GAC

• CAT TCA CTG

• TAC ACT GTC

 

A process in which DNA has the unique ability to make an exact copy of itself.

• Transcription

• Replication

• Translation

• Protein Synthesis

Where are proteins made?

• muscles

• nucleus

• outside the nucleus in the cytoplasm

Which of the following statements is true?

• DNA is single-stranded

• RNA contains deoxyribose

• DNA contains uracil

• RNA is single-stranded

Transcribe the following DNA sequence into RNA

"AAT TAG GGC TCG"

• AAT TAG GGC TCG

• UUA AUC CCG AGC

• TTA ATC CCG AGC

• TTU UTC CCG UGC

What is Transcription?

• The making DNA segment.from mRNA.

• The making of an RNA strand into a protein.

• The making of an mRNA strand from the DNA template.

What does the lactose do to the Operon? 

• Blocks transcription because of the energy it provides

• Allows the repressor to be unbind from the Operator.

• The lactose binds the lactose and stops transcription

• Allows for the transcription to speed

What is the inducer in the lac operon?

• cAMP

• glucose

• lactose

• CRP

In the trp operon, __ acts as a __ and helps the repressor bind to the operator.

• lactose, corepressor

• tryptophan, corepressor

• tryptophan, inducer

• lactose, inducer

A protein that binds to the operator and blocks the RNA polymerase

• regulator

• activator

• repressor

• corepressor