Top 50+ Solved Structure of DNA and RNA MCQ Questions Answer
Q. The technique involved in comparing the DNA components of two samples is known as
a. Monoclonal antibody techniques
b. Genetic finger printing
c. Recombinant DNA technology
d. Polymerase chain reaction
Q. Plasmids are ideal vectors for genecloning as
a. They can be multiplied by culturing
b. They can be multiplied in the laboratory using enzymes
c. They can replicate freely outside the bacterial cell
d. They are self replicating within the bacterial cell
Q. Pasteur effect is due to
a. Change from aerobic to anaerobic
b. Providing oxygen to anaerobically respiring structures
c. Rapid utilization of ATP
d. Nonsynthesis of ATP
Q. A mechanism that can cause a gene to move from one linkage group to another is
a. Trans location
b. Inversion
c. Crossing over
d. Duplication
Q. The smallest unit of genetic material that can undergo mutation is called
a. Gene
b. Cistron
c. Replicon
d. Muton
Q. The two chromat ids of metaphase chrosome represent
a. Replicated chromosomes to be separated at anaphase
b. Homologous chromosomes of a diploid set
c. Non-homologous chromosomes joined at the centromere
d. Maternal and paternal chromosomes joined
Q. In E.Coli att site is in between
a. Gal and biogenes
b. Bio and niacin genes
c. Gal and B genes
d. None of these
Q. The best vector for gene cloning
a. Relaxed control plasmid
b. Stringent control plasmid
c. Both a and b
d. None of these
Q. A gene that takes part in the synthesis ofpolypeptide is
a. Structural gene
b. Regulator gene
c. Operator gene
d. Promoter gene
Q. A human cell containing 22 autosomeand a ‘Y’ chromosome is probably a
a. Male somatic cell
b. Zygote
c. Female somatic cell
d. Sperm cell
Q. Crossing-over most commonly occursduring
a. Prophase I
b. Prophase II
c. Anaphase I
d. Telophase II
Q. DNA-replication is by the mechanism of
a. Conservative
b. Semiconservative
c. Dispersive
d. None of the above