GCD 3022 Exam Questions With Complete Solutions
2 causes of gene conversion Correct Answers DNA mismatch
repair
DNA gap repair synthesis
2 types of suppressor mutations Correct Answers Intragenic
Intergenic
2 types of variants Correct Answers deleterious
beneficial
2 ways to repair a DNA double stranded break Correct Answers
Homologous recombination repair
Non-homologous end joining
3 mechanism for RNA splicing Correct Answers -Group I
intron splicing
-Group II intron splicing
-Spliceosome
3 steps for transcription Correct Answers Initiation
Elongation
Termination
3 types of chemical mutagens Correct Answers base modifiers
,intercalating agents
base analogs
3 types of mutations Correct Answers 1. change in
chromosome structure
2. changes in chromosome number
3. single-gene mutation
3 types of spontaneous Correct Answers Depurination (most
common)
Deamination
tautomeric shift
4 types of point mutation Correct Answers silent
missense
nonsense
frameshift
5 families of Chromatin Remodelers Correct Answers
SWI/SNF
ISWI
NURD/Mi-2/CHD
, INO80
SWR1
A site Correct Answers Aminoacyl site
-where new charged tRNA comes in
Advantages of repairing while transcribing Correct Answers -
active genes are more loose
-transcription may make DNA more susceptible to damage
-DNA regions that contain active genes are more likely to be
important
Allosteric enzymes Correct Answers
Anabolism Correct Answers -the biosynthesis of a substance
-makes operons repressible
Antibodies or Immunoglobulins (Igs) Correct Answers proteins
produced by the immune system to recognize antigens and to
target them for destruction
Antigen-Antibody Correct Answers -there are very specific
-there is one antibody for each antigen
Antigens Correct Answers foreign substances (viruses,
bacteria, etc.)
2 causes of gene conversion Correct Answers DNA mismatch
repair
DNA gap repair synthesis
2 types of suppressor mutations Correct Answers Intragenic
Intergenic
2 types of variants Correct Answers deleterious
beneficial
2 ways to repair a DNA double stranded break Correct Answers
Homologous recombination repair
Non-homologous end joining
3 mechanism for RNA splicing Correct Answers -Group I
intron splicing
-Group II intron splicing
-Spliceosome
3 steps for transcription Correct Answers Initiation
Elongation
Termination
3 types of chemical mutagens Correct Answers base modifiers
,intercalating agents
base analogs
3 types of mutations Correct Answers 1. change in
chromosome structure
2. changes in chromosome number
3. single-gene mutation
3 types of spontaneous Correct Answers Depurination (most
common)
Deamination
tautomeric shift
4 types of point mutation Correct Answers silent
missense
nonsense
frameshift
5 families of Chromatin Remodelers Correct Answers
SWI/SNF
ISWI
NURD/Mi-2/CHD
, INO80
SWR1
A site Correct Answers Aminoacyl site
-where new charged tRNA comes in
Advantages of repairing while transcribing Correct Answers -
active genes are more loose
-transcription may make DNA more susceptible to damage
-DNA regions that contain active genes are more likely to be
important
Allosteric enzymes Correct Answers
Anabolism Correct Answers -the biosynthesis of a substance
-makes operons repressible
Antibodies or Immunoglobulins (Igs) Correct Answers proteins
produced by the immune system to recognize antigens and to
target them for destruction
Antigen-Antibody Correct Answers -there are very specific
-there is one antibody for each antigen
Antigens Correct Answers foreign substances (viruses,
bacteria, etc.)
