Review Session #6

What is the correct sequence of processes in the Central Dogma of molecular biology?

• RNA → DNA → Proteins

• Proteins → RNA → DNA

• DNA → RNA → Proteins

• Proteins → DNA → RNA

Which process is responsible for the synthesis of RNA from DNA?

• Translation

• Replication

• Reverse transcription

• Transcription

What is the process called that converts RNA into proteins?

• Transcription

• Replication

• Reverse transcription

• Translation

Which base in RNA replaces thymine found in DNA?

• Adenine

• Cytosine

• Guanine

• Uracil

What is the main role of mRNA?

• It forms the structure of ribosomes.

• It codes for proteins.

• It is involved in the regulation of gene expression.

• It transports amino acids to the ribosome.

Tags

NGSS.HS-LS1-1

What enzyme is responsible for linking new bases during transcription?

• DNA polymerase

• Helicase

• RNA polymerase II

• Primase

During DNA replication, what is required by DNA polymerase to add bases?

• A 5' primer

• A 3' primer

• A 3' OH group

• A DNA template

What happens to the RNA strand after transcription?

• It remains permanently attached to DNA

• It forms a double helix

• It is displaced from the DNA template

• It is proofread and corrected

Why is it acceptable for RNA polymerase to make more mistakes than DNA polymerase?

• Because RNA is not involved in protein synthesis

• Because RNA is double-stranded

• Because RNA is permanent

• Because RNA is temporary

What is the function of the promoter region in transcription for eukaryotes?

• It is the region where transcription ends.

• It is the region where RNA polymerase II binds to start transcription.

• It is the region that codes for multiple proteins.

• It is the region that releases the sigma factor in bacterial transcription.