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MCQs

Total Questions : 348 | Page 1 of 35 pages
Question 1. Synthesis of which of following is directed by gene expression?
  1.    chromosomes
  2.    immune system
  3.    other genes
  4.    proteins
 Discuss Question
Answer: Option D. -> proteins
Answer: (d).proteins
Question 2. Which of following proteins are required to bring translation initiator complex together?
  1.    initiator proteins
  2.    translation proteins
  3.    spliceosomes
  4.    ribozymes
 Discuss Question
Answer: Option A. -> initiator proteins
Answer: (a).initiator proteins
Question 3. Which of following mutations changes one amino acid to another?
  1.    missense mutation
  2.    point mutation
  3.    substitution
  4.    addition
 Discuss Question
Answer: Option A. -> missense mutation
Answer: (a).missense mutation
Question 4. Which of following is not a part of translation initiator complex?
  1.    small ribosomal subunit
  2.    large ribosomal subunit
  3.    DNA
  4.    tRNA
 Discuss Question
Answer: Option C. -> DNA
Answer: (c).DNA
Question 5. Which of following can cause mutations?
  1.    heat
  2.    mutagens
  3.    water
  4.    malnourishment
 Discuss Question
Answer: Option B. -> mutagens
Answer: (b).mutagens
Question 6. Modified version of which of following acts as 'cap'?
  1.    guanine
  2.    cytosine
  3.    adenine
  4.    uracil
 Discuss Question
Answer: Option A. -> guanine
Answer: (a).guanine
Question 7. What happens at 3 prime ends of mRNA?
  1.    deletion of end
  2.    addition of cap
  3.    addition of poly t tail
  4.    addition of poly a tail
 Discuss Question
Answer: Option D. -> addition of poly a tail
Answer: (d).addition of poly a tail
Question 8. How many types of RNA polymerase is present in prokaryotes?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option A. -> 1
Answer: (a).1
Question 9. Discrete functional and structural regions in proteins are called
  1.    beads
  2.    fingers
  3.    motifs
  4.    domains
 Discuss Question
Answer: Option D. -> domains
Answer: (d).domains
Question 10. Initial mRNA that has not yet been translated to a protein is called
  1.    initial transcript
  2.    new RNA
  3.    primary transcript
  4.    naive rRNA
 Discuss Question
Answer: Option C. -> primary transcript
Answer: (c).primary transcript

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