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Peter test 2

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Third Year Gene's and Genomes Quiz on Peter test 2, created by Alexandra McCabe on 27/05/2015.
Alexandra McCabe
Quiz by Alexandra McCabe, updated more than 1 year ago
Alexandra McCabe
Created by Alexandra McCabe over 9 years ago
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Resource summary

Question 1

Question
What is a pseudogene?
Answer
  • genes that don't function or code anymore
  • gene that don't function but still code
  • Genes that still function but don't code
  • Genes that code and function

Question 2

Question
What is not found pseudogenes
Answer
  • failed duplication events
  • genes moved by transposition
  • Disabled genes
  • enable genes

Question 3

Question
What is a copy of DNA that has an intron or exon inserted somewhere else in the gene
Answer
  • Normal gene
  • non-processed pseudogene
  • Processed pseudogene
  • Unprocessed pseudogene

Question 4

Question
What is mRNA taken up transposable elements and placing it back in the genome
Answer
  • Normal genes
  • Non-processed pseudogenes
  • processed pseudogenes
  • Unprocessed pseudogenes

Question 5

Question
What is the name of the process whereby large segments in the parent cell are made into single segments due to catalytic reactions
Answer
  • Homologous recombination
  • Site-specific recombination
  • Transposition

Question 6

Question
Who discovered transposable elements?
Answer
  • Barbara McClintock
  • Sir David Bruce
  • Sir Elton John
  • Stansis Barthanin

Question 7

Question
What happens to corn kernel colour when the "C" gene is transposed by Ds
Answer
  • Stays the same
  • Purple
  • Clear= red
  • Clear=purple

Question 8

Question
When the ds interrupts the gene the protein is now produced
Answer
  • True
  • False

Question 9

Question
Why would you get a spotted kernel?
Answer
  • The corn immune cells are destroying the TE
  • The mutant ds is transposed out of the gene causing the gene to return to normal
  • Ds starts to fade
  • Ds starts to become inactive

Question 10

Question
How does the mutant ds TE arise?
Answer
  • Rearrangement of C gene
  • Rearrangement of Ac gene
  • exactly the same as C gene
  • exactly the same as Ac gene

Question 11

Question
When are Ac/ds transposed mostly?
Answer
  • Chromosome replication
  • When chromosomes are methylated
  • When chromosomes are demethylated

Question 12

Question
What two things do you always find at the end of a transposable element?
Answer
  • inverted repeated
  • No repeats
  • direct repeats

Question 13

Question
Which TE mechanism cuts and pastes gene into another place?
Answer
  • Simple transposition
  • Replicative transposition
  • retrotransposition

Question 14

Question
In which organism is simple transposition commom?
Answer
  • bacteria and eukaryotic species
  • only bacteria
  • only eukaryotic cells
  • Protozoa

Question 15

Question
Which transposition is only copy and pastes the DNA therefore two of the same DNA is found on the same gene
Answer
  • Simple
  • replicative
  • retro

Question 16

Question
Which transposition mechanism uses reverse transcriptase to place mRNA back into gene
Answer
  • retro
  • simple
  • replicative

Question 17

Question
Where are direct repeats mostly found?
Answer
  • within the host's DNA
  • at the end of most TE's

Question 18

Question
What can insertion sequences central regions do?
Answer
  • encodes for transposase enzyme
  • encodes for inhibitory proteins
  • encodes for regulatory proteins

Question 19

Question
transposase recognises direct repeats
Answer
  • True
  • False

Question 20

Question
What is the function of the transposase enzyme?
Answer
  • Cut between the borders of the transposon and gDNA
  • Cut between the borders of the direct and indirect repeats
  • Cut in the middle of the transposon
  • To catalyse the incorporation of the transposable element into the DNA

Question 21

Question
What is the function of composite transposons?
Answer
  • Contain additional genes that are not necessary for the transposition
  • Contain additional genes that are necessary for the transposition

Question 22

Question
Which transposition type cause antibiotic resistance
Answer
  • composite transpostion
  • replicative transposition

Question 23

Question
Which mechanism uses resolvase gene
Answer
  • Composite mechanism
  • replicative

Question 24

Question
What is the function of resolvase?
Answer
  • seperates cointergrant DNA into seperate structures that both have the TE
  • seperates structures into cointergrant DNA that both have the TE
  • combines cointergrant DNA into seperate structures that both have the TE
  • combines structures into cointergrant DNA that both have the TE

Question 25

Question
What do viral like retroelements have at both ends of the TE?
Answer
  • Long Terminal repeats
  • Short Terminal repeats
  • Direct Repeats
  • Inverted repeats

Question 26

Question
TE's are easily incorporated into methylated DNA
Answer
  • True
  • False

Question 27

Question
Where do the TE's usually found? 2
Answer
  • Centromeres
  • Telomeres
  • Nowhere specific
  • X chromosome

Question 28

Question
How is are LINE's produced?
Answer
  • Reverse transcriptase encoding region
  • forward transcriptase encoding region

Question 29

Question
How are LINE cDNA produced
Answer
  • Reverse Transcriptase encoding region
  • Forward Transcriptase encoding region
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