Question 1

Which of the following have been produced by genetic engineering?

Accepted Answer

A) human insulin 
B) interferon 
C) malaria vaccine 
D) all have 
A) human insulin 
B) interferon 
C) malaria vaccine 
D) all have A

Question 2

What is the natural ratio of normal DNA duplication to incorrect DNA duplication due to a mistake and copy?

Accepted Answer

A) 1,000:1 
B) 1,000,000:1 
C) 10,000,000,000:1 
D) 100,000,000,000,000:1 
A) 1,000:1 
B) 1,000,000:1 
C) 10,000,000,000:1 
D) 100,000,000,000,000:1 C

Question 3

DNA molecules are in the form of a double helix with the two strands running parallel and in the same direction.

Accepted Answer

A) True 
 B)False  False

Question 4

The DNA molecule is significantly smaller than the RNA molecule.

Accepted Answer

A) True 
 B)False

Question 5

Match between columns
                        Premises:  RNA that delivers individual amino acid molecules to the site of protein synthesis

Accepted Answer

The Answer of Messenger RNA and Ribosome and Transfer RNA is...

Question 6

A region of a DNA strand carrying the information needed for the synthesis of a specific protein is called a _____ .

Accepted Answer

A) codon 
B) gene 
C) chromosome 
D) complementary base pair 
A) codon 
B) gene 
C) chromosome 
D) complementary base pair

Question 7

DNA fingerprinting has become an important tool during the investigation of a crime scene.  Which of the following processes is not considered a portion of DNA fingerprinting?

Accepted Answer

A) gel electrophoresis 
B) PCR amplification 
C) reverse transcription 
D) radioactivity detection 
A) gel electrophoresis 
B) PCR amplification 
C) reverse transcription 
D) radioactivity detection

Question 8

A complementary strand (written in the 5'-3' order)for the DNA segment AGC is _____ .

Accepted Answer

A) GCT 
B) TCG 
C) AGC 
D) none 
A) GCT 
B) TCG 
C) AGC 
D) none

Question 9

The participation of tRNA is performed by the formation of a coordinate covalent bond between the tRNA and a specific amino acid.

Accepted Answer

A) True 
 B)False

Question 10

DNA segments in eukaryotic cells which carry information for protein synthesis are called _____ .

Accepted Answer

A) introns 
B) exons 
C) heterogeneous DNA 
D) heterogeneous nuclear DNA 
A) introns 
B) exons 
C) heterogeneous DNA 
D) heterogeneous nuclear DNA

Question 11

What type of bonding holds the two intertwined polynucleotide chains of the DNA double helix together?

Accepted Answer

A) covalent 
B) hydrogen 
C) polar 
D) ionic 
A) covalent 
B) hydrogen 
C) polar 
D) ionic

Question 12

The site of protein synthesis is the ribosome.

Accepted Answer

A) True 
 B)False

Question 13

Codons provide the information needed to synthesize which of the following?

Accepted Answer

A) mRNA 
B) tRNA 
C) DNA 
D) proteins 
A) mRNA 
B) tRNA 
C) DNA 
D) proteins

Question 14

What do restriction enzymes do?

Accepted Answer

A) restrict enzyme activity 
B) regulate the type of DNA allowed into a bacterial cell 
C) catalyze the manufacture of DNA 
D) limit enzyme growth 
A) restrict enzyme activity 
B) regulate the type of DNA allowed into a bacterial cell 
C) catalyze the manufacture of DNA 
D) limit enzyme growth

Question 15

Viruses infect cells by

Accepted Answer

A) embedding in cell membranes. 
B) immediate destruction of cells. 
C) injecting their nucleic acid into cells. 
D) withdrawing cellular contents. 
A) embedding in cell membranes. 
B) immediate destruction of cells. 
C) injecting their nucleic acid into cells. 
D) withdrawing cellular contents.

Question 16

During transcription, the base adenine in DNA pairs with the base ____ in the new mRNA.

Accepted Answer

A) guanine 
B) thymine 
C) cytosine 
D) uracil 
A) guanine 
B) thymine 
C) cytosine 
D) uracil

Question 17

Write the sequence of mRNA in the 3' to 5' direction that would be synthesized from the following DNA sequence. 5'   C-G-A-T-T-C     3'

Accepted Answer

A) G-C-T-A-A-G 
B) G-A-A-U-C-G 
C) G-C-U-A-A-G 
D) G-A-A-T-C-G 
A) G-C-T-A-A-G 
B) G-A-A-U-C-G 
C) G-C-U-A-A-G 
D) G-A-A-T-C-G

Question 18

Modified plasmids can diffuse into bacterial cells.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following statements about DNA profiling is false?

Accepted Answer

A) The percent of differences in DNA between people is great (99.9%). 
B) Small DNA samples can be used through a process called PCR. 
C) Everyone has different DNA, except identical twins. 
D) DNA can be extracted from almost any biological sample. 
A) The percent of differences in DNA between people is great (99.9%). 
B) Small DNA samples can be used through a process called PCR. 
C) Everyone has different DNA, except identical twins. 
D) DNA can be extracted from almost any biological sample.

Question 20

The bonding forces between two DNA strands in a double helix are

Accepted Answer

A) peptide linkages. 
B) phosphate bonds. 
C) acetal bonds. 
D) hydrogen bonds. 
A) peptide linkages. 
B) phosphate bonds. 
C) acetal bonds. 
D) hydrogen bonds.

Exam 21: Nucleic Acids and Protein Synthesis

Which of the following have been produced by genetic engineering?

What is the natural ratio of normal DNA duplication to incorrect DNA duplication due to a mistake and copy?

DNA molecules are in the form of a double helix with the two strands running parallel and in the same direction.

The DNA molecule is significantly smaller than the RNA molecule.

A region of a DNA strand carrying the information needed for the synthesis of a specific protein is called a _____ .

DNA fingerprinting has become an important tool during the investigation of a crime scene. Which of the following processes is not considered a portion of DNA fingerprinting?

A complementary strand (written in the 5'-3' order)for the DNA segment AGC is _____ .

The participation of tRNA is performed by the formation of a coordinate covalent bond between the tRNA and a specific amino acid.

DNA segments in eukaryotic cells which carry information for protein synthesis are called _____ .

What type of bonding holds the two intertwined polynucleotide chains of the DNA double helix together?

The site of protein synthesis is the ribosome.

Codons provide the information needed to synthesize which of the following?

What do restriction enzymes do?

Viruses infect cells by

During transcription, the base adenine in DNA pairs with the base ____ in the new mRNA.

Write the sequence of mRNA in the 3' to 5' direction that would be synthesized from the following DNA sequence. 5' C-G-A-T-T-C 3'

Modified plasmids can diffuse into bacterial cells.

Which of the following statements about DNA profiling is false?

The bonding forces between two DNA strands in a double helix are

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