2823379
Descrição
Quiz por Alexandra McCabe, atualizado more than 1 year ago
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Criado por Alexandra McCabe
mais de 9 anos atrás
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Questão 1
Questão
What is a pseudogene?
Responda
-
genes that don't function or code anymore
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gene that don't function but still code
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Genes that still function but don't code
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Genes that code and function
Questão 2
Questão
What is not found pseudogenes
Responda
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failed duplication events
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genes moved by transposition
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Disabled genes
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enable genes
Questão 3
Questão
What is a copy of DNA that has an intron or exon inserted somewhere else in the gene
Responda
-
Normal gene
-
non-processed pseudogene
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Processed pseudogene
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Unprocessed pseudogene
Questão 4
Questão
What is mRNA taken up transposable elements and placing it back in the genome
Responda
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Normal genes
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Non-processed pseudogenes
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processed pseudogenes
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Unprocessed pseudogenes
Questão 5
Questão
What is the name of the process whereby large segments in the parent cell are made into single segments due to catalytic reactions
Responda
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Homologous recombination
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Site-specific recombination
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Transposition
Questão 6
Questão
Who discovered transposable elements?
Responda
-
Barbara McClintock
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Sir David Bruce
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Sir Elton John
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Stansis Barthanin
Questão 7
Questão
What happens to corn kernel colour when the "C" gene is transposed by Ds
Responda
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Stays the same
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Purple
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Clear= red
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Clear=purple
Questão 8
Questão
When the ds interrupts the gene the protein is now produced
Responda
- True
- False
Questão 9
Questão
Why would you get a spotted kernel?
Responda
-
The corn immune cells are destroying the TE
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The mutant ds is transposed out of the gene causing the gene to return to normal
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Ds starts to fade
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Ds starts to become inactive
Questão 10
Questão
How does the mutant ds TE arise?
Responda
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Rearrangement of C gene
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Rearrangement of Ac gene
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exactly the same as C gene
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exactly the same as Ac gene
Questão 11
Questão
When are Ac/ds transposed mostly?
Responda
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Chromosome replication
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When chromosomes are methylated
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When chromosomes are demethylated
Questão 12
Questão
What two things do you always find at the end of a transposable element?
Responda
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inverted repeated
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No repeats
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direct repeats
Questão 13
Questão
Which TE mechanism cuts and pastes gene into another place?
Responda
-
Simple transposition
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Replicative transposition
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retrotransposition
Questão 14
Questão
In which organism is simple transposition commom?
Responda
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bacteria and eukaryotic species
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only bacteria
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only eukaryotic cells
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Protozoa
Questão 15
Questão
Which transposition is only copy and pastes the DNA therefore two of the same DNA is found on the same gene
Responda
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Simple
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replicative
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retro
Questão 16
Questão
Which transposition mechanism uses reverse transcriptase to place mRNA back into gene
Responda
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retro
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simple
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replicative
Questão 17
Questão
Where are direct repeats mostly found?
Responda
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within the host's DNA
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at the end of most TE's
Questão 18
Questão
What can insertion sequences central regions do?
Responda
-
encodes for transposase enzyme
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encodes for inhibitory proteins
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encodes for regulatory proteins
Questão 19
Questão
transposase recognises direct repeats
Responda
- True
- False
Questão 20
Questão
What is the function of the transposase enzyme?
Responda
-
Cut between the borders of the transposon and gDNA
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Cut between the borders of the direct and indirect repeats
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Cut in the middle of the transposon
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To catalyse the incorporation of the transposable element into the DNA
Questão 21
Questão
What is the function of composite transposons?
Responda
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Contain additional genes that are not necessary for the transposition
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Contain additional genes that are necessary for the transposition
Questão 22
Questão
Which transposition type cause antibiotic resistance
Responda
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composite transpostion
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replicative transposition
Questão 23
Questão
Which mechanism uses resolvase gene
Responda
-
Composite mechanism
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replicative
Questão 24
Questão
What is the function of resolvase?
Responda
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seperates cointergrant DNA into seperate structures that both have the TE
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seperates structures into cointergrant DNA that both have the TE
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combines cointergrant DNA into seperate structures that both have the TE
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combines structures into cointergrant DNA that both have the TE
Questão 25
Questão
What do viral like retroelements have at both ends of the TE?
Responda
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Long Terminal repeats
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Short Terminal repeats
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Direct Repeats
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Inverted repeats
Questão 26
Questão
TE's are easily incorporated into methylated DNA
Responda
- True
- False
Questão 27
Questão
Where do the TE's usually found? 2
Responda
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Centromeres
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Telomeres
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Nowhere specific
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X chromosome
Questão 28
Questão
How is are LINE's produced?
Responda
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Reverse transcriptase encoding region
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forward transcriptase encoding region
Questão 29
Questão
How are LINE cDNA produced
Responda
-
Reverse Transcriptase encoding region
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Forward Transcriptase encoding region
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