Top 80+ Solved Molecular Basis of Inheritance MCQ Questions Answer
Q. Aminoacids lysine, serine and arginine are coded by how many codons ?
a. 6, 4, and 3 respectively
b. 4, 2 and 2 respectively
c. 6 codons
d. 4 codons
Q. Which of the following amino acid is coded by 3 codons ?
a. serine
b. Proline
c. Tryptophan
d. Isoleucine
Q. How many nucleotides make one okazaki segment in eukaryotes ?
a. 1000-1500
b. 100-200
c. 5000
d. Not fixed
Q. Which of the following enzymes help in the process of formation of phosphodiester bond during reverse transcription ?
a. DNA - dependant RNA polymerase
b. DNA dependant DNA polymerase
c. RNA - dependant RNA polymerase
d. RNA - dependant DNA polymerase
Q. DNA replication in lagging strand of most of the eukaryotic organis ms is
a. conservative and continuous
b. semi conservative but discontinuous
c. conservative and semi - discontinuous
d. semi conservative but continuous
Q. Match the following using salient features of Human genome project A B(P) Less than 2 % genome (i) 3 billion nucleotide bases(Q) Chromosome 1 (ii) 231 genes(R) Y chromosome (iii) 2968 genes(S) Human genome (iv) codes for protein
a. (P - iv) (Q - iii) ( R - ii) ( S - i)
b. ( P - iv) (Q - ii) (R - iii) (S - i)
c. (P - iv) (Q - i) (R - ii) (S - iii)
d. (P - i) (Q - iii) (R - iv) (S - ii)
Q. State the use of moleculer medicine ?
a. Improves diagnosis of diseases
b. Used as gene theraphy
c. Used to understand several diseass like Alzheimer’s Parkinsons diseases et,
d. All the above
Q. Among the following which is used for separation of DNA fragments ?
a. centifugation
b. Cell fractionation
c. Cell homogenation
d. Electrophoresis
Q. In Which of the following DNA not directly involved ?
a. Repication
b. Transcription
c. Translation
d. Transformation
Q. Transcription begins when one of the following enzymes binds to promotor site.
a. DNA polymerase
b. RNA polymerase
c. helicase
d. Gyrase
Q. What dose A & B represent ?
a. Grycase , Helicase
b. Double Stranded Protein, Helicase
c. Helicase, Single strand binding protein
d. Topoisomerase Helicase
Q. State the process and mention the labelled protion.
a. Process of Translation - X-RNA Polymerase- Y-DNA Template- Z-m RNA Transcript
b. process of Transcription - X-RNA Polymerase- Y-DNA Template- Z- RNA Transcript
c. process of Translocation - X-DNA polymerase- Y- Template- Z- Transcript
d. Process of Transformation - X - DNA polymerase- Y - RNA template- Z - RNA transcript
Q. Which state is represent by the above model
a. Repressed state of lac operon
b. Inactive state of Lac operon
c. Active state of Lac operon
d. Induced state of Lac operon