Transcription and Translation

What is the role of DNA during transcription?

• To build proteins directly

• To provide the code for building mRNA

• To remove introns

• To translate mRNA into proteins

What is the initial form of mRNA called?

• Mature mRNA

• tRNA

• Pre-mRNA

• rRNA

What process removes introns from pre-mRNA?

• Translation

• Transcription

• Splicing

• Replication

What remains in the mRNA after splicing?

• Introns

• Exons

• Codons

• Anticodons

Where does the mRNA go after leaving the nucleus?

• Mitochondria

• Ribosomes in the cytoplasm

• Golgi apparatus

• Endoplasmic reticulum

What are ribosomes made of?

• DNA and proteins

• rRNA and proteins

• Lipids and carbohydrates

• mRNA and tRNA

What is the function of codons in mRNA?

• To replicate DNA

• To code for amino acids

• To form the cell membrane

• To transport lipids

Which molecule carries the genetic code from DNA to the ribosome?

• tRNA

• mRNA

• rRNA

• DNA polymerase

What is the significance of the anticodon in tRNA?

• It ensures the correct amino acid is added.

• It initiates DNA replication.

• It degrades mRNA.

• It forms the ribosome structure.

What is the primary structure formed during elongation?

• A growing polypeptide chain.

• A new DNA strand.

• A lipid bilayer.

• A carbohydrate chain.