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MCQs

Total Questions : 348 | Page 29 of 35 pages
Question 281. The phenomenon of RNA interference was discovered using the organism ___________________
  1.    Mus musculus
  2.    Drosophila
  3.    C. elegans
  4.    Arabidopsis thaliana
 Discuss Question
Answer: Option C. -> C. elegans
Answer: (c).C. elegans
Question 282. Which family of proteins plays a key role in gene silencing pathways?
  1.    Globulin
  2.    Argonaute
  3.    Intein-containing proteins
  4.    Amino-acyl transferases
 Discuss Question
Answer: Option B. -> Argonaute
Answer: (b).Argonaute
Question 283. RNA interference is evolved as a genetic immune system.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 284. RNA interference is not observed in vertebrates.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 285. Dicer converts double-stranded RNAs into _______________
  1.    snRNA
  2.    siRNA
  3.    mRNA
  4.    tRNA
 Discuss Question
Answer: Option B. -> siRNA
Answer: (b).siRNA
Question 286. What takes place when siRNAs are used in place of dsRNA in mammalian cells?
  1.    gene knock-down
  2.    apoptosis
  3.    necrosis
  4.    aggregation
 Discuss Question
Answer: Option A. -> gene knock-down
Answer: (a).gene knock-down
Question 287. The first RNAi therapeutics was aimed at treating ______________________
  1.    muscular dystrophy
  2.    macular degeneration
  3.    multiple myeloma
  4.    neurodegeneration
 Discuss Question
Answer: Option B. -> macular degeneration
Answer: (b).macular degeneration
Question 288. Which of the following RNAs are highly conserved?
  1.    let-1
  2.    pet-1
  3.    let-7
  4.    pet-7
 Discuss Question
Answer: Option C. -> let-7
Answer: (c).let-7
Question 289. Micro RNAs participate in ______________
  1.    posttranslational modification
  2.    posttranscriptional modification
  3.    chromatin remodeling
  4.    gene silencing
 Discuss Question
Answer: Option D. -> gene silencing
Answer: (d).gene silencing
Question 290. Drosha is an ___________________
  1.    enzyme
  2.    micro RNA
  3.    messenger RNA
  4.    satellite DNA
 Discuss Question
Answer: Option A. -> enzyme
Answer: (a).enzyme

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