MOLECULAR DIAGNOSTICS CHAPTER
#1 EXAM QUESTIONS WITH CORRECT
ANSWERS
What reactions are catalyzed by DNA methyltransferase? - ANSWER-Addition of
methyl groups to nitrogen bases
The purpose of ligase is to what? - ANSWER-Paste 2 ends of DNA together
What is the fertility factor (F) observed by Hayes and Lederberg? - ANSWER-A
plasmid
Avery, MacLeod, and McCarty identified the nature of Griffith's transforming factor in
an experiment where it was destroyed by what treatment? - ANSWER-
Deoxyribonuclease
The movement of DNA from one bacterium to another through the activity of
bacteriophages is called what? - ANSWER-Transduction
In sexual recombination, new combinations of genes are created by what process? -
ANSWER-Crossing over
Recombination between a plasmid and the cell chromosome will result in what? -
ANSWER-Stable integration of plasmid genes into the chromosome
DNA replication is: - ANSWER-Semiconservative
An exon is: - ANSWER-an open reading frame (ORF)
The nucleotides in a single strand of DNA are held together by which of the following
bonds? - ANSWER-Hydrogen
Which of the following is a purine? - ANSWER-Adenine (and guanine)
Which of the following does not play a role in DNA replication? - ANSWER-Stop
codon
The purpose of endonuclease is to: - ANSWER-Cut DNA within the double helix
Adenine, thymine, guanine, and cytosine are what components of DNA? - ANSWER-
Nitrogen bases
In translation, what is the starting and ending material, and the major enzyme that
catalyze the process? - ANSWER-RNA, Protein, Peptidyl transferase
Thalessemias arise from changes in what part of the beta-globin gene? - ANSWER-
Splice-recognition site
#1 EXAM QUESTIONS WITH CORRECT
ANSWERS
What reactions are catalyzed by DNA methyltransferase? - ANSWER-Addition of
methyl groups to nitrogen bases
The purpose of ligase is to what? - ANSWER-Paste 2 ends of DNA together
What is the fertility factor (F) observed by Hayes and Lederberg? - ANSWER-A
plasmid
Avery, MacLeod, and McCarty identified the nature of Griffith's transforming factor in
an experiment where it was destroyed by what treatment? - ANSWER-
Deoxyribonuclease
The movement of DNA from one bacterium to another through the activity of
bacteriophages is called what? - ANSWER-Transduction
In sexual recombination, new combinations of genes are created by what process? -
ANSWER-Crossing over
Recombination between a plasmid and the cell chromosome will result in what? -
ANSWER-Stable integration of plasmid genes into the chromosome
DNA replication is: - ANSWER-Semiconservative
An exon is: - ANSWER-an open reading frame (ORF)
The nucleotides in a single strand of DNA are held together by which of the following
bonds? - ANSWER-Hydrogen
Which of the following is a purine? - ANSWER-Adenine (and guanine)
Which of the following does not play a role in DNA replication? - ANSWER-Stop
codon
The purpose of endonuclease is to: - ANSWER-Cut DNA within the double helix
Adenine, thymine, guanine, and cytosine are what components of DNA? - ANSWER-
Nitrogen bases
In translation, what is the starting and ending material, and the major enzyme that
catalyze the process? - ANSWER-RNA, Protein, Peptidyl transferase
Thalessemias arise from changes in what part of the beta-globin gene? - ANSWER-
Splice-recognition site
