GCD 3022 Exam 3 Newest 2026 Questions and
Correct Detailed Answers Already Graded A+
replicative transposition - CORRECT ANSWER-copy and paste; relatively
uncommon and only found in bacteria
Retrotransposition - CORRECT ANSWER-very common but only in eukaryotes
retrotranspostion elements are termed _______________ or ____________ -
CORRECT ANSWER-retrotransposons; retroelements
____________ use an RNA intermediate in their _______________ mechanism -
CORRECT ANSWER-retroelements; transpostition
Retrotransposition uses two key enzymes: - CORRECT ANSWER-reverse
transcriptase; integrase
transposons are __________ when they contain all the information necessary for
transpostion - CORRECT ANSWER-autonomous
,transposons are _____________ when they lack a gene that is necessary for
transposition to occur. this includes __________ - CORRECT ANSWER-
nonautonomous; Alu elements
homologous recombination - CORRECT ANSWER-crossing over between
eukaryotic homologous chromosomes
What has Homologous recombination studied in?---------- because -------------- -
CORRECT ANSWER-fungal ascus. cells from meiosis are in order in the ascus
and can not change order
gene conversion - CORRECT ANSWER-one allele is converted to the allele on
the homologous chromosome
The Holliday Model - CORRECT ANSWER-Proposed originally by Robin Holliday;
was mostly correct except he thought it started by two single stranded DNA nicks
Double stranded breaks initiate the_____________________ that occurs in
meiosis. According to the ___________________ model - CORRECT ANSWER-
homologous recombination; Double strand Break Model
, The double stranded Break Model - CORRECT ANSWER-
Double crossovers appear to be resolved ________________ - CORRECT
ANSWER-one at a time
Causes of Gene Conversion - CORRECT ANSWER-DNA mismatch repair
DNA gap repair synthesis
site specific recombination - CORRECT ANSWER-requires very little sequence
homology between the recombining DNA molecules. Relatively short sequences;
catalyzed by specialized enzymes
site-specific recombination is used by - CORRECT ANSWER-1. Certain viruses
when they replicate their genomes
2. Certain viruses and transposons, to insert their DNA into host cell DNA
3. The mammalian immune system, to generate a diverse array of antibodies
_______________ normally catalyzes site specific recombination between
________ sites during bacteriophage ______ replication - CORRECT ANSWER-
Cre recombinase
LoxP
Correct Detailed Answers Already Graded A+
replicative transposition - CORRECT ANSWER-copy and paste; relatively
uncommon and only found in bacteria
Retrotransposition - CORRECT ANSWER-very common but only in eukaryotes
retrotranspostion elements are termed _______________ or ____________ -
CORRECT ANSWER-retrotransposons; retroelements
____________ use an RNA intermediate in their _______________ mechanism -
CORRECT ANSWER-retroelements; transpostition
Retrotransposition uses two key enzymes: - CORRECT ANSWER-reverse
transcriptase; integrase
transposons are __________ when they contain all the information necessary for
transpostion - CORRECT ANSWER-autonomous
,transposons are _____________ when they lack a gene that is necessary for
transposition to occur. this includes __________ - CORRECT ANSWER-
nonautonomous; Alu elements
homologous recombination - CORRECT ANSWER-crossing over between
eukaryotic homologous chromosomes
What has Homologous recombination studied in?---------- because -------------- -
CORRECT ANSWER-fungal ascus. cells from meiosis are in order in the ascus
and can not change order
gene conversion - CORRECT ANSWER-one allele is converted to the allele on
the homologous chromosome
The Holliday Model - CORRECT ANSWER-Proposed originally by Robin Holliday;
was mostly correct except he thought it started by two single stranded DNA nicks
Double stranded breaks initiate the_____________________ that occurs in
meiosis. According to the ___________________ model - CORRECT ANSWER-
homologous recombination; Double strand Break Model
, The double stranded Break Model - CORRECT ANSWER-
Double crossovers appear to be resolved ________________ - CORRECT
ANSWER-one at a time
Causes of Gene Conversion - CORRECT ANSWER-DNA mismatch repair
DNA gap repair synthesis
site specific recombination - CORRECT ANSWER-requires very little sequence
homology between the recombining DNA molecules. Relatively short sequences;
catalyzed by specialized enzymes
site-specific recombination is used by - CORRECT ANSWER-1. Certain viruses
when they replicate their genomes
2. Certain viruses and transposons, to insert their DNA into host cell DNA
3. The mammalian immune system, to generate a diverse array of antibodies
_______________ normally catalyzes site specific recombination between
________ sites during bacteriophage ______ replication - CORRECT ANSWER-
Cre recombinase
LoxP
