Chromosomal Abberations and Repair

Descripción

Year 2 Test sobre Chromosomal Abberations and Repair, creado por gina_evans0312 el 17/12/2013.
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Test por gina_evans0312, actualizado hace más de 1 año
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Creado por gina_evans0312 hace casi 11 años
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Resumen del Recurso

Pregunta 1

Pregunta
Which of the following can cause double strand breaks in the DNA?
Respuesta
  • Ionising radiation
  • Meiosis
  • Chemicals
  • DNA replication errors

Pregunta 2

Pregunta
What are Chromosome Fragile Sites?
Respuesta
  • Sites where double strand breaks are likely to occur
  • Sites that can be easily split accidentally by protein machinery
  • Sites that are likely to warp during heat shock

Pregunta 3

Pregunta
Chromosome fragile sites are thought to be caused by difficulties during meiosis
Respuesta
  • True
  • False

Pregunta 4

Pregunta
What does NHEJ stand for?
Respuesta
  • Non-homologous end joining
  • Non-homologous editing joints
  • Non-heterodimeric end joints

Pregunta 5

Pregunta
What are the requirements for NHEJ?
Respuesta
  • Double strand breaks
  • Single strand breaks
  • T-T lesions
  • DNA ligase 4
  • DNA ligase 2

Pregunta 6

Pregunta
The repair process of NHEJ will join any 2 free ends together, regardless of homology
Respuesta
  • True
  • False

Pregunta 7

Pregunta
An error in NHEJ can lead to translocation between which chromosomes, forming what type of chromosome fusion?
Respuesta
  • Philadelphia chromosome
  • Inverted chromosome
  • 8 &12
  • 9 & 22
  • 13 & 21

Pregunta 8

Pregunta
The repair process of Homologous Recombination relies on what?
Respuesta
  • That the damaged sequence in the sister chromatid is intact
  • That the damaged sequence in the homologous chromosome is intact
  • That the damaged sequence in the other allele is intact

Pregunta 9

Pregunta
What is required for an error in Homologous Recombination?
Respuesta
  • A faulty alignment of the two chromosomes
  • A faulty alignment of the two chromatids
  • Due to inversions
  • Due to translocations
  • Due to repeats

Pregunta 10

Pregunta
What type of repair is the image showing?
Respuesta
  • NHEJ
  • Homologous Recombination

Pregunta 11

Pregunta
A fault in Homologus Recombination can lead to alleles being lost
Respuesta
  • True
  • False
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