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Molecular Basis of Inheritance · Question 164

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

Anticodon occurs in:

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

Answer

(3) t-RNA

Solution

As per NCERT, tRNA (the adapter molecule) has an anticodon loop with bases complementary to the codon on mRNA, and an amino acid acceptor end to which it binds the amino acid.

∴ The anticodon occurs in t-RNA.

Answer: (3)

AIPMT 2000

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2

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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3

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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4

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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5

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
AIPMT 2000

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