Drosophila MCQ

Test your knowledge with important Drosophila MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Drosophila MCQs on Bissoy. Bissoy App

• Transient gene silencing can be carried out by microinjecting ______
  ক

  single stranded RNA

  খ

  double stranded DNA

  গ

  double stranded RNA

  ঘ

  either double stranded DNA or RNA
• Where do P elements integrate into the genome?
  ক

  At specifically defined sites

  খ

  Randomly

  গ

  Only at the ends of the genome

  ঘ

  Integration depends on reaction conditions
• The host should ____ P elements, these elements lead to _______
  ক

  not have, instability

  খ

  have, stability

  গ

  not have, increase the time taken for integration

  ঘ

  have, reduces the time taken for integration
• Cis-acting sites should be present in the vector for ________
  ক

  replication

  খ

  selecting recombinants by acting as a marker

  গ

  transposition

  ঘ

  providing high copy number
• Wild-type Drosophila flies are _____ to ethanol supplied in food.
  ক

  resistant

  খ

  non-resistant

  গ

  resistant at low concentration and non-resistant at higher concentration

  ঘ

  resistant at higher concentrations and non-resistant at lower concentration
• Wild type flies have crimson red eyes whereas rosy mutant have brick-red eyes.
  ক

  True

  খ

  False
• rosy gene is used as a selectable marker for transformation in Drosophila, it produces an enzyme required for the synthesis of ____________
  ক

  wing pigment

  খ

  eye pigment

  গ

  both eye and wing pigment

  ঘ

  thorax pigment
• Only the _____ part of Drosophila is transgenic and the rest is not. This is known as ______
  ক

  germline cell, mosaic

  খ

  nurse cells, mosaic

  গ

  germline cells, hybrid

  ঘ

  nurse cells, hybrid
• ______ integration systems are used for the transfer of DNA in Drosophila and it is composed of ______
  ক

  Artificial, P elements

  খ

  Artificial, S elements

  গ

  Natural, P elements

  ঘ

  Natural, S elements
• In Drosophila, only nuclei cells give rise to germline cells.
  ক

  True

  খ

  False
• Syncytium is a layer of ______ that have not been separated into individual cells.
  ক

  nuclei

  খ

  mitochondria

  গ

  cytoplasm

  ঘ

  nuclei and cytoplasm
• Transgenic Drosophila can be created by microinjection of DNA into the embryos. These embryos are at which stage of development?
  ক

  One-cell stage

  খ

  Pre-blastoderm stage

  গ

  Blastoderm

  ঘ

  Morula