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Molecular Basis of Inheritance · Question 163

AIPMT 2000MCQEasy📈 Topic in 25% papers+4−1
1

Which of the following is initiation codon?

  1. AUC
  2. CCU
  3. UAG
  4. AUG

Answer

(4) AUG

Solution

As per NCERT, AUG has dual functions: it codes for methionine (met) and also acts as the initiator (start) codon.

UAG is a stop codon, AUC codes for isoleucine and CCU for proline.

Answer: (4)

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2

Anticodon occurs in:

  1. DNA
  2. r-RNA
  3. t-RNA
  4. m-RNA
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3

Length of one loop of B-DNA:

  1. 20 nm.
  2. 10 nm.
  3. 3.4 nm.
  4. 0.34 nm.
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4

In three dimensional view the molecule of t-RNA is:

  1. E-shaped
  2. L-shaped
  3. S-shaped
  4. Y-shaped
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5

Similarity in DNA and RNA:

  1. Both have similar sugar
  2. Both are genetic material
  3. Both have similar pyrimidine
  4. Both are polymer of nucleotides
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6

Which is the most important factor for continuity of a species from evolutionary point of view?

  1. Formation of gametes
  2. Synthesis of proteins
  3. Replication of genetic material
  4. None of these
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