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MCQs

Total Questions : 348 | Page 8 of 35 pages
Question 71. Motifs are related structures present on the transcription factors constituting the _________________ domain.
  1.    Activation
  2.    DNA-binding
  3.    RNA-binding domain
  4.    Nucleic acid-binding
 Discuss Question
Answer: Option B. -> DNA-binding
Answer: (b).DNA-binding
Question 72. How many domains are present in a transcription factor?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 73. In the leucine-zipper motif, leucine occurs after every ____ amino acids.
  1.    2
  2.    4
  3.    6
  4.    8
 Discuss Question
Answer: Option C. -> 6
Answer: (c).6
Question 74. One of the key-enzymes involved in gluconeogenesis is ______________
  1.    phosphoenolpyruvate carboxykinase
  2.    phosphoenolpyruvate carboxylase
  3.    phosphoenolpyruvate ethanol
  4.    phosphoenolpyruvate esterase
 Discuss Question
Answer: Option A. -> phosphoenolpyruvate carboxykinase
Answer: (a).phosphoenolpyruvate carboxykinase
Question 75. Core promoter is the site that stretches between _______________
  1.    TATA box and start site
  2.    TATA box and stop site
  3.    TATA box and operator
  4.    TATA box and the promoter
 Discuss Question
Answer: Option A. -> TATA box and start site
Answer: (a).TATA box and start site
Question 76. CAAT and GC box are ________________
  1.    stop codons
  2.    promoter sequences
  3.    inhibitor sequences
  4.    operator sequences
 Discuss Question
Answer: Option B. -> promoter sequences
Answer: (b).promoter sequences
Question 77. TATA box regulates the frequency with which the gene is transcribed.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 78. Deletion maps are used to determine sites in the genome which interact with ___________________
  1.    transcription factors
  2.    polymerase
  3.    ribonuclease
  4.    endonuclease
 Discuss Question
Answer: Option A. -> transcription factors
Answer: (a).transcription factors
Question 79. Which of the following is not a proximal promoter element?
  1.    TATA
  2.    GC
  3.    AT
  4.    CAAT
 Discuss Question
Answer: Option C. -> AT
Answer: (c).AT
Question 80. Which of the following is a transcription factor widely employed in eukaryotic gene expression?
  1.    NE1
  2.    NF1
  3.    NF2
  4.    NF3
 Discuss Question
Answer: Option B. -> NF1
Answer: (b).NF1

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