The Genetic Code MCQ

Test your knowledge with important The Genetic Code MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more The Genetic Code MCQs at Bissoy

• With respect to the universal genetic code pick the odd one out.
  ক

  UAA – Glutamine

  খ

  UGG – Tryptophan

  গ

  AGA – Stop

  ঘ

  CUG – Serine
• Fruitfly mitochondrial codes AGA and AGG codes for _____________
  ক

  Termination

  খ

  Tryptophan

  গ

  Serine

  ঘ

  Arginine
• The mitochondrial genome has _____________ stop codons.
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• The mitochondrial mRNA code for methionine is _____________
  ক

  UAA

  খ

  AGA

  গ

  AUA

  ঘ

  AUG
• With respect to the genetic code reading frame which of the following is wrong?
  ক

  5’ → 3’ direction reading frame

  খ

  The code is non – overlapping

  গ

  No gaps present

  ঘ

  Flexible reading frame
• The stop codon on the mRNA is read by __________
  ক

  Ribosome

  খ

  tRNA

  গ

  cRF1

  ঘ

  mRNA
• The modification of which base gives rise to inosine?
  ক

  Adenine

  খ

  Guanine

  গ

  Uridine

  ঘ

  Cytosine
• The first amino acid added by the tRNA is added to the anticodon ____________
  ক

  AUG

  খ

  UAC

  গ

  ACG

  ঘ

  UGC
• Which of the following is not a chain termination codon?
  ক

  UAA

  খ

  UGA

  গ

  UAG

  ঘ

  UGG
• According to the pairing concept of wobble hypothesis base “I” in the anticodon does not pair with?
  ক

  A

  খ

  U

  গ

  G

  ঘ

  C
• Which of the following genetic code shows ambiguity?
  ক

  CGU

  খ

  AUG

  গ

  GAC

  ঘ

  UGA
• Point mutation of the second place mutating “A” with “T” will result in a similar if not the same amino acid.
  ক

  True

  খ

  False
• The distribution of codon is made in such a way to minimize mutation effect.
  ক

  True

  খ

  False
• The wobble hypothesis was devised by ____________
  ক

  Arthur Kornberg

  খ

  Francis Crick

  গ

  James Watson

  ঘ

  William Asbury
• In case of mitochondrial genetic code UGA is a ____________ codon.
  ক

  Tryptophan

  খ

  Arginine

  গ

  Proline

  ঘ

  Stop
• Which of the following is not a termination codon?
  ক

  UGA

  খ

  AGA

  গ

  AGG

  ঘ

  UAC
• One base in an mRNA can be used for more than one codon.
  ক

  True

  খ

  False
• There is one amino acid for one genetic code.
  ক

  True

  খ

  False
• The codon is a ____________
  ক

  Singlet

  খ

  Duplet

  গ

  Triplet

  ঘ

  Quadruplet
• Which of the following is not a feature of the genetic code?
  ক

  Triplet

  খ

  Degenerate

  গ

  Non – overlapping

  ঘ

  Ambiguous
• Wobble hypothesis was first proposed by ____________
  ক

  Nirenberg

  খ

  Watson and Crick

  গ

  Watson

  ঘ

  Crick
• The genetic code translated the language of ____________
  ক

  Proteins into that of RNA

  খ

  Amino acids into that of RNA

  গ

  RNA into that of proteins

  ঘ

  RNA into that of DNA
• In which of the following cases the first base of anticodon pairs with three codons?
  ক

  When the first base of anticodon is A or C

  খ

  When the first base of anticodon is A or G

  গ

  When the first base of anticodon is inosine

  ঘ

  When the first base of anticodon is G or U
• In which of the following cases the first base of anticodon pairs with two codons?
  ক

  When the first base of anticodon is A or C

  খ

  When the first base of anticodon is A or G

  গ

  When the first base of anticodon is inosine

  ঘ

  When the first base of anticodon is G or U
• In which of the following cases the first base of anticodon pairs with only one codon?
  ক

  When the first base of anticodon is A or C

  খ

  When the first base of anticodon is A or G

  গ

  When the first base of anticodon is inosine

  ঘ

  When the first base of anticodon is G or U
• How many t-RNAs are required to translate all 61 codons?
  ক

  31

  খ

  32

  গ

  30

  ঘ

  29
• The termination codon is not ____________
  ক

  AUG

  খ

  UAA

  গ

  UAG

  ঘ

  UGA
• The initiation codon is ____________
  ক

  AUG

  খ

  UAA

  গ

  UAG

  ঘ

  UGA
• A codon contains how many nucleotides?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• The “standard” genetic code is almost universal?
  ক

  False

  খ

  True