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Molecular Basis of Inheritance

NEET (UG) 2022 (Phase 2)MatchingMedium📈 Topic in 75% papers+4−1
Ques. 1NEET (UG) 2022 (Phase 2)

Match List-I with List-II: Choose the correct answer from the options given below:

  1. (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
  2. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  3. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
  4. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

Answer

(4) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

Solution

As per NCERT (length of DNA):

(a) Bacteriophage φX174 has 5386 nucleotides ⇒ (ii).

(b) Bacteriophage lambda has 48502 base pairs ⇒ (i).

(c) Escherichia coli has 4.6 106 bp ⇒ (iv).

(d) Haploid content of human DNA is 3.3 109 bp ⇒ (iii).

∴ (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii).

Answer: (4)

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Ques. 2NEET (UG) 2022 (Phase 2)

If DNA contained sulfur instead of phosphorus and proteins contained phosphorus instead of sulfur, what would have been the outcome of Hershey and Chase experiment?

  1. Radioactive phosphorus in bacterial cells
  2. No radioactive sulfur in bacterial cells
  3. Both radioactive sulfur and phosphorus in bacterial cells
  4. Radioactive sulfur in bacterial cells
Ques. 3NEET (UG) 2022 (Phase 2)

Against the codon 5' UAC 3', what would be the sequence of anticodon on tRNA?

  1. 5' GUA 3'
  2. 5' AUG 3'
  3. 5' ATG 3'
  4. 5' GTA 3'
Ques. 4NEET (UG) 2022 (Phase 2)

If A and C make 30% and 20% of DNA, respectively, what will be the percentage composition of T and G?

  1. T : 20%, G : 20%
  2. T : 20%, G : 30%
  3. T : 30%, G : 20%
  4. T : 30%, G : 30%
Ques. 5NEET (UG) 2021

Complete the flow chart on central dogma. [figure]

  1. (a) - Transduction; (b) - Translation; (c) - Replication; (d) - Protein
  2. (a) - Replication; (b) - Transcription; (c) - Transduction; (d) - Protein
  3. (a) - Translation; (b) - Replication; (c) - Transcription; (d) - Transduction
  4. (a) - Replication; (b) - Transcription; (c) - Translation; (d) - Protein
Ques. 6NEET (UG) 2021

What is the role of RNA polymerase III in the process of transcription in eukaryotes?

  1. Transcribes only snRNAs
  2. Transcribes rRNAs (28S, 18S and 5.8S)
  3. Transcribes tRNA, 5S rRNA and snRNA
  4. Transcribes precursor of mRNA
Ques. 7NEET (UG) 2021

DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as

  1. Polymorphic DNA
  2. Satellite DNA
  3. Repetitive DNA
  4. Single nucleotides
Ques. 8NEET (UG) 2021

Identify the correct statement.

  1. Split gene arrangement is characteristic of prokaryotes
  2. In capping, methyl guanosine triphosphate is added to the 3' end of hnRNA
  3. RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria
  4. The coding strand in a transcription unit is copied to an mRNA
Ques. 9NEET (UG) 2021

If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it?

  1. T : 20 ; G : 25 ; C : 25
  2. T : 20 ; G : 30 ; C : 20
  3. T : 20 ; G : 20 ; C : 30
  4. T : 30 ; G : 20 ; C : 20
Ques. 10NEET (UG) 2021

Which of the following RNAs is not required for the synthesis of protein?

  1. siRNA
  2. mRNA
  3. tRNA
  4. rRNA
Ques. 11NEET (UG) 2021

Which is the "Only enzyme" that has "Capability" to catalyse Initiation, Elongation and Termination in the process of transcription in prokaryotes?

  1. DNase
  2. DNA dependent DNA polymerase
  3. DNA dependent RNA polymerase
  4. DNA Ligase

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