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Molecular Basis of Inheritance

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

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)

Keep practising — Molecular Basis of Inheritance

Ques. 2AIPMT 2000

Length of one loop of B-DNA:

  1. 20 nm.
  2. 10 nm.
  3. 3.4 nm.
  4. 0.34 nm.
Ques. 3AIPMT 2000

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

  1. E-shaped
  2. L-shaped
  3. S-shaped
  4. Y-shaped
Ques. 4AIPMT 2000

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
Ques. 5AIPMT 2000

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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