QW13 Review

What does transcription convert a DNA into?

• A) A double-stranded DNA molecule

• B) A single-stranded RNA molecule

• C) A protein

• D) A ribosome

Which sugar is found in RNA?

• A) Deoxyribose

• B) Glucose

• C) Ribose

• D) Fructose

What is the function of Messenger RNA (mRNA)?

• A) Forms part of ribosomes where proteins are made

• B) Brings amino acids from the cytoplasm to a ribosome

• C) Carries the message that will be translated to form a protein

• D) Recognizes the start of a gene and begins to unwind the segment of DNA

Which of the following is not a base found in RNA?

• A) Uracil (U)

• B) Adenine (A)

• C) Cytosine (C)

• D) Thymine (T)

What is the role of RNA polymerase during transcription?

• A) It brings amino acids from the cytoplasm to a ribosome

• B) It reads one side of the DNA template and strings a complementary strand of RNA nucleotides

• C) It detaches the RNA strand from the DNA once the gene is transcribed

• D) It carries the message that will be translated to form a protein

If a DNA segment has the nucleotides AGCCTAA, what would be the nucleotide sequence of the complementary RNA strand?

• A) TCGGATT

• B) UCGGAUU

• C) AGCCTAA

• D) TAGGCTT

What is the role of tRNA during translation?

• It forms the ribosome.

• It carries amino acids to the ribosome.

• It binds to the mRNA codon.

• It creates peptide bonds between amino acids.

Which molecule contains the anticodon? (a)  

Which molecule contains the codon? ​ (b)  

• tRNA
• rRNA

• Peptide

• mRNA

What is the role of the small ribosomal subunit in translation?

• It synthesizes mRNA.

• It carries the tRNA to the ribosome.

• It binds to the mRNA.

• It creates amino acids.

What is the basic building block of a protein?

• Nucleotide

• Ribosome

• Amino acid

• Peptide bond

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