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MCQs

Total Questions : 348 | Page 9 of 35 pages
Question 81. Glucocorticoids are released during periods of __________________
  1.    stress
  2.    maturation
  3.    climate change
  4.    gastrulation
 Discuss Question
Answer: Option A. -> stress
Answer: (a).stress
Question 82. Expression of genes is also regulated by distant DNA elements called _________________
  1.    enhancers
  2.    activators
  3.    promoters
  4.    inhibitors
 Discuss Question
Answer: Option A. -> enhancers
Answer: (a).enhancers
Question 83. Which of the following majorly influences the activity of genes during early mammalian development?
  1.    temperature changes
  2.    homeostasis
  3.    stimulation
  4.    inheritance
 Discuss Question
Answer: Option D. -> inheritance
Answer: (d).inheritance
Question 84. A single gene can encode two or more related proteins by the process of _________________
  1.    gene silencing
  2.    alternative splicing
  3.    recombination
  4.    transcription
 Discuss Question
Answer: Option B. -> alternative splicing
Answer: (b).alternative splicing
Question 85. Prader-Willi syndrome (PWS) is caused due to disturbances in which of the following chromosomes?
  1.    15
  2.    16
  3.    19
  4.    21
 Discuss Question
Answer: Option A. -> 15
Answer: (a).15
Question 86. Which of the following is a temporary storage site for RNAs?
  1.    P-bodies
  2.    Ribosomes
  3.    V-bodies
  4.    Vacuole
 Discuss Question
Answer: Option A. -> P-bodies
Answer: (a).P-bodies
Question 87. The degradation of mRNA begins, when its tail reduces to _________ residues.
  1.    2
  2.    3
  3.    20
  4.    30
 Discuss Question
Answer: Option D. -> 30
Answer: (d).30
Question 88. Degradation of cellular unwanted proteins is carried out in _________
  1.    Proteasomes
  2.    Lysosome
  3.    Peroxisomes
  4.    Ribosomes
 Discuss Question
Answer: Option A. -> Proteasomes
Answer: (a).Proteasomes
Question 89. To carry out translational-level control, miRNAs bind to __________ of their target mRNAs.
  1.    3’
  2.    5’
  3.    intergenic sites
  4.    exonuclease sites
 Discuss Question
Answer: Option A. -> 3’
Answer: (a).3’
Question 90. Which enzyme is responsible for the synthesis of microRNAs?
  1.    enhancer
  2.    dicer
  3.    splicer
  4.    promoter
 Discuss Question
Answer: Option B. -> dicer
Answer: (b).dicer

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