BIO 110- Exam #4 Questions with
Correct Answers
In which direction is mRNA always synthesized?
A. 5' to 3'
B. 3' to 5'
C. Depends- can be either 5' to 3' or 3' to 5' - ANSWERSA. 5' to 3'
Which of the following completes the phrase to make it a new statement?
During the process of transcription:
A. DNA polymerase adds nucleotides to the newly synthesized strand
B. One DNA strand serves as a template
C. a supply of the nucleotides ACGT is required
D> Two new RNA molecules are produced - ANSWERSB. One DNA strand serves as a
template
Which of these is NOT true of translation?
A. The information in a DNA molecule is used directly to produce a protein
B. The transfer RNAs bring amino acids to the ribosome
C. The process continues until a stop codon is reached
D. The mRNA provides the information to direct the synthesis of a polypeptide -
ANSWERSA. The information in a DNA molecule is used directly to produce a protein
Where within the eukaryotic cell might a drug which exclusively binds to tRNA binding
sites exert its effects?
A. The lysosome
B. the nucleus
C. The mitochondrial inner membrane
D. The cytoplasm - ANSWERSD. The cytoplasm
What is the functional relationship between codons and amino acids?
A. Many different codons may code for the same amino acids
B. Codons and amino acids randomly associated around a tRNA
C. A given amino acid is only coded by a single codon
D. A single codon may code for many amino acids - ANSWERSA. Many different
codons may code for the same amino acids
Correct Answers
In which direction is mRNA always synthesized?
A. 5' to 3'
B. 3' to 5'
C. Depends- can be either 5' to 3' or 3' to 5' - ANSWERSA. 5' to 3'
Which of the following completes the phrase to make it a new statement?
During the process of transcription:
A. DNA polymerase adds nucleotides to the newly synthesized strand
B. One DNA strand serves as a template
C. a supply of the nucleotides ACGT is required
D> Two new RNA molecules are produced - ANSWERSB. One DNA strand serves as a
template
Which of these is NOT true of translation?
A. The information in a DNA molecule is used directly to produce a protein
B. The transfer RNAs bring amino acids to the ribosome
C. The process continues until a stop codon is reached
D. The mRNA provides the information to direct the synthesis of a polypeptide -
ANSWERSA. The information in a DNA molecule is used directly to produce a protein
Where within the eukaryotic cell might a drug which exclusively binds to tRNA binding
sites exert its effects?
A. The lysosome
B. the nucleus
C. The mitochondrial inner membrane
D. The cytoplasm - ANSWERSD. The cytoplasm
What is the functional relationship between codons and amino acids?
A. Many different codons may code for the same amino acids
B. Codons and amino acids randomly associated around a tRNA
C. A given amino acid is only coded by a single codon
D. A single codon may code for many amino acids - ANSWERSA. Many different
codons may code for the same amino acids
