Exploring DNA, RNA, and Protein Synthesis

What is the role of DNA in protein synthesis?

• It breaks down proteins.

• It directly forms proteins.

• It acts as a blueprint for building proteins.

• It transports proteins.

Which of the following is NOT a component of a DNA nucleotide?

• Phosphate

• Deoxyribose

• Nitrogen base

• Ribose

In RNA, which nitrogen base is present instead of thymine?

• Cytosine

• Uracil

• Adenine

• Guanine

What is the first step in protein synthesis called?

• Translation

• Transcription

• Replication

• Mutation

During transcription, what serves as the template to produce a complementary strand of RNA?

• Protein

• RNA

• Amino acids

• DNA

Where does transcription occur in the cell?

• Endoplasmic reticulum

• Ribosome

• Nucleus

• Cytoplasm

What is the second step in protein synthesis called?

• Transcription

• Translation

• Replication

• Mutation

What is the role of tRNA during translation?

• It carries amino acids to the ribosome.

• It breaks down mRNA.

• It forms the ribosome.

• It transcribes DNA.

How many common amino acids are used in protein synthesis?

• 30

• 40

• 20

• 10

What is the start codon for protein synthesis?

• AUG

• UAA

• UGA

• UAG