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Molecular Basis of Inheritance

NEET (UG) 2024MCQEasy📈 Topic in 75% papers+4−1
Ques. 1NEET (UG) 2024

A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and down stream end;

  1. Repressor, Operator gene, Structural gene
  2. Structural gene, Transposons, Operator gene
  3. Inducer, Repressor, Structural gene
  4. Promoter, Structural gene, Terminator

Answer

(4) Promoter, Structural gene, Terminator

Solution

A transcription unit in DNA is defined by three regions: a promoter (towards the 5' end, upstream of the structural gene), the structural gene, and a terminator (towards the 3' end, downstream of the coding strand).

Answer: (4)

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Ques. 2NEET (UG) 2024

Which of the following statement is correct regarding the process of replication in E. coli?

  1. The DNA dependent DNA polymerase catalyses polymerization in one direction that is 3' 5'
  2. The DNA dependent RNA polymerase catalyses polymerization in one direction, that is 5' 3'
  3. The DNA dependent DNA polymerase catalyses polymerization in 5' 3' as well as 3' 5' direction
  4. The DNA dependent DNA polymerase catalyses polymerization in 5' 3' direction
Ques. 3NEET (UG) 2024

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

  1. A-III, B-II, C-I, D-IV
  2. A-III, B-IV, C-I, D-II
  3. A-II, B-III, C-IV, D-I
  4. A-IV, B-II, C-II, D-III
Ques. 4NEET (UG) 2024

Which one is the correct product of DNA dependent RNA polymerase to the given template? 3'TACATGGCAAATATCCATTCA5'

  1. 5'AUGUACCGUUUAUAGGUAAGU3'
  2. 5'AUGUAAAGUUUAUAGGUAAGU3'
  3. 5'AUGUACCGUUUAUAGGGAAGU3'
  4. 5'ATGTACCGTTTATAGGTAAGT3'
Ques. 5NEET (UG) 2024

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

  1. A-II, B-IV, C-I, D-III
  2. A-III, B-II, C-IV, D-I
  3. A-III, B-IV, C-I, D-II
  4. A-IV, B-III, C-I, D-II
Ques. 6RE-NEET (UG) 2024

Given below are two statements regarding RNA polymerase in prokaryotes. In the light of the above statements, choose the correct answer from the options given below :

  1. Statement I is true but Statement II is false
  2. Statement I is false but Statement II is true
  3. Both Statement I and Statement II are true
  4. Both Statement I and Statement II are false
Ques. 7RE-NEET (UG) 2024

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:

  1. Statement I is correct but Statement II is incorrect
  2. Statement I is incorrect but Statement II is correct
  3. Both Statement I and Statement II are correct
  4. Both Statement I and Statement II are incorrect
Ques. 8RE-NEET (UG) 2024

Match List-I with List-II:

  1. A-IV, B-III, C-II, D-I
  2. A-III, B-I, C-IV, D-II
  3. A-II, B-III, C-IV, D-I
  4. A-III, B-IV, C-I, D-II
Ques. 9RE-NEET (UG) 2024

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Statement I is true but Statement II is false
  2. Statement I is false but Statement II is true
  3. Both Statement I and Statement II are true
  4. Both Statement I and Statement II are false
Ques. 10NEET (UG) 2023

Unequivocal proof that DNA is the genetic material was first proposed by

  1. Alfred Hershey and Martha Chase
  2. Avery, MacLeod and McCarty
  3. Wilkins and Franklin
  4. Frederick Griffith
Ques. 11NEET (UG) 2023

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

  1. Transcription of tRNA, 5S rRNA and snRNA
  2. Transcription of precursor of mRNA
  3. Transcription of only snRNAs
  4. Transcription of rRNAs (28S, 18S and 5.8S)

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