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Question 11: The site where RNA polymerase attaches to the DNA molecule to start the formation of the mRNA is called A. Operon B. Exon C. Operator D. Promoter. Question 12: Which is true about RNA polymerase? A. It does not require a primer B. It is used during transcription C. It reads the template in the 3’-5’ direction D. All of the choices are true. Question 13: A stop codon A. Codes for the stop amino acid s-methyl-methionine B. Enhances the binding of the RNA polymerase C. Forces the ribosome to fall off D. Codes for no amino acid. Question 14: Long stretches of repeated nucleotides on the ends of the linear eukaryotic chromosomes are called A. Histones B. Exons C. Introns D. Telomeres. Question 15: The nucleotide sequences on DNA that actually have information encoding a sequence of amino acids are A. Proteins B. Exons C. Enhancers D. Introns. Question 16: After transcription, what needs to be added to the mRNA? A. A 5’ methyl cap B. A 3’ poly-A tail C. Introns D. Both 5’ methyl cap and a 3’ poly-A tail. Question 17: A tightly wound nucleosome is not available for transcription. A. True B. False. Question 18: A single gene can produce different polypeptides due to A. Alternative splicing B. Methylation C. Mutation D. All of the choices are correct. Question 19: The first molecule to bind the mRNA and initiate translation is A. Codon B. Small ribosomal subunit C. tRNA D. Large ribosomal subunit. Question 20: What happens to the tRNA in the P site of the ribosome after the peptide bond is formed between amino acids? A. It enters the A site B. It releases its amino acid and exits the ribosome shifts C. It exits the ribosome as the ribosome shifts D. It releases its amino acid.

Question 11: The site where RNA polymerase attaches to the DNA molecule to start the formation of the mRNA is called A. Operon B. Exon C. Operator D. Promoter.
Question 12: Which is true about RNA polymerase? A. It does not require a primer B. It is used during transcription C. It reads the template in the 3’-5’ direction D. All of the choices are true.
Question 13: A stop codon A. Codes for the stop amino acid s-methyl-methionine B. Enhances the binding of the RNA polymerase C. Forces the ribosome to fall off D. Codes for no amino acid.
Question 14: Long stretches of repeated nucleotides on the ends of the linear eukaryotic chromosomes are called A. Histones B. Exons C. Introns D. Telomeres.
Question 15: The nucleotide sequences on DNA that actually have information encoding a sequence of amino acids are A. Proteins B. Exons C. Enhancers D. Introns.
Question 16: After transcription, what needs to be added to the mRNA? A. A 5’ methyl cap B. A 3’ poly-A tail C. Introns D. Both 5’ methyl cap and a 3’ poly-A tail.
Question 17: A tightly wound nucleosome is not available for transcription. A. True B. False.
Question 18: A single gene can produce different polypeptides due to A. Alternative splicing B. Methylation C. Mutation D. All of the choices are correct.
Question 19: The first molecule to bind the mRNA and initiate translation is A. Codon B. Small ribosomal subunit C. tRNA D. Large ribosomal subunit.
Question 20: What happens to the tRNA in the P site of the ribosome after the peptide bond is formed between amino acids? A. It enters the A site B. It releases its amino acid and exits the ribosome shifts C. It exits the ribosome as the ribosome shifts D. It releases its amino acid.

Added by Brenda C.

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