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WorksheetsTransposition
Total questions: 15
Worksheet time: 11mins
The enzyme that catalyzes the transposition of an IS element is called __________
Transposase
Integrase
Transcriptase
Polymerase
Hybrid dysgenesis is caused by which of the following transposable element?
Non-composite transposon
LINE
P-element
Ac-element
Retrotransposons transposes through the RNA intermediates.
True
False
Wild type female Drosophila have active P-elements.
True
False
LTR transposons are a type of__________
retrotransposon
cut and paste transposon
Which of these scientists play an important role in transposon discovery?
Barbara McClintock
James A. Shapiro
Peter Starlinger
R.W. Hedges
Ty element of yeast is a
Type I transposon
Type II transposon
The statements below are correct about a Ds element EXCEPT
Known as disassociator element
Is an autonomous transposon
Capable of causing mutation
Encodes for pigment producing characteristics in corn kernel
Ac transposon
cannot move independantly
is not capable of reverting mutation
is an autonomous transposon
can mutate C locus
Type II transposition mechanism is
cut and paste
copy and paste
P-females Drosophila
have a P-element
is the same as M-females
cannot suppress P-element
have an inhibitor/suppressor to the P element
All options are based on the figure
a Type I transposon
two separate transposase units are involved
the transposon copy will be at its original location
all the above is correct
Choose the INCORRECT statement. Refer to the Figure to answer this question.
Inverted repeat flank a transposon
Direct repeat is obtained because the cut made is staggered
Direct repeat is obtained because the cut made is blunt
Direct repeat may get longer with more transposition
Transposon can cause human disease as below EXCEPT
cancer
haemophilia
Down syndrome
Duchenne muscular dystrophy
Transposable elements were first found in
Maize
Bacteria
Virus
Pea
