Top 80+ Solved Molecular Basis of Inheritance MCQ Questions Answer

From 16 to 30 of 97

Q. t - RNA attaches aminoacid at its

a. 31 end

b. 51 end

c. Anticodon

d. Loop

  • a. 31 end

Q. DNA acts as a template for synthesis of

a. RNA

b. DNA

c. Both ‘a’ and ‘b’

d. Protein

  • c. Both ‘a’ and ‘b’

Q. Antiparallel strand in DNA is due to

a. Disulphide linkage

b. Hydorgen bond

c. Phosphodiester bond

d. Ionic bond

  • c. Phosphodiester bond

Q. Multiplication of DNA is called

a. Translation

b. Replication

c. Transduction

d. Transcription

  • b. Replication

Q. Which is the smallest RNA ?

a. r RNA

b. m RNA

c. t - RNA

d. nuclear RNA

  • c. t - RNA

Q. Genetic information are transfered from nucleus to cytoplasm of cell through

a. DNA

b. RNA

c. Lysosomes

d. Anticodon

  • b. RNA

Q. The information from RNA to DNA are transfered by which process

a. Replication

b. Transcription

c. Translation

d. Reverse transcription

  • d. Reverse transcription

Q. DNA molecule has uniform diameter due to ?

a. Double stranded

b. Presence of phosphate

c. Specific base pairing between purine and pyrimidine

d. Specific base pairing between purine and purine

  • c. Specific base pairing between purine and pyrimidine

Q. In a transcription unit promotor is said to be located towards

a. 31 end of structural gene

b. 51 end of structural gene

c. 51 end of template strand

d. 31 end of template strand

  • d. 31 end of template strand

Q. In DNA replication the primer is

a. A Small deoxyribonucleotide polymer

b. A small ribonucleotide polymer

c. Helix destalilizing protein

d. Enzyme taking part in joining nucleotides of new strands

  • b. A small ribonucleotide polymer

Q. Non - sense codons take part in

a. formation of unspecified aminoacids

b. Terminating message of gene controlled protein synthesis

c. Releasing t-RNA from polynucleotide chain

d. Conversion of sense DNA in to non-sense one

  • b. Terminating message of gene controlled protein synthesis

Q. select the correct sequence of following in DNA replication

a. single stranded binding proteins - Helicase - Topoisomerase - DNA polymerase

b. Helicase - single stranded binding proteins -Topoisomerase - DNA polymerase

c. Helicase - DNA polymerase - Topoisomerase - Single stranded binding proteins

d. Helicase - Topoisomerase - DNA polymerase - Single stranded binding proteins

  • b. Helicase - single stranded binding proteins -Topoisomerase - DNA polymerase

Q. Which of the following enzymes can detect and correct the wrong inserted base during DNA replication ?

a. DNA polymerase - I

b. DNA polymerase - II

c. Primase

d. Ligase

  • a. DNA polymerase - I

Q. Which one is a ribozyme ?

a. Helicase

b. Ribonuclease - P

c. Peptidyl transferase

d. Both (B) & (C)

  • d. Both (B) & (C)
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