Top 1000+ Solved Microbiology MCQ Questions Answer

Q. Nucleic acids contain

a. Alanine

b. Adenine

c. Lysine

d. Arginine

Q. What are the structural units of nucleicacids?

a. N-base

b. Nucleosides

c. Nucleotides

d. Histones

Q. The most important function of a gene isto synthesize

a. Enzyme

b. Hormones

c. RNA

d. DNA

Q. One of the genes present exclusively on the X-chromosome in humans is concerned with

a. Baldness

b. Red-green colour baldness

c. Facial hair/moustache in males

d. Night blindness

Q. Peptide linkages are formed in between

a. Nucleotides

b. Amino acids

c. Glucose molecules

d. Sucrose

Q. The nucleic acid of polio viruses is

a. DNA

b. RNA – (+) type

c. t-RNA

d. m-RNA

Q. Rabies virus is

a. Nake RNA virus

b. Naked DNA virus

c. Enveloped RNA virus

d. Enveloped DNA virus

Q. Example for DNA virus:

a. Polio viru

b. Adeno virus

c. Echo virus

d. Poty virus

Q. In genetic engineering breaks in DNA areformed by enzymes known as

a. Restriction enzymes

b. Ligases

c. Nucleases

d. Hydralases

Q. DNA transfer from one bacterium toanother through phages is termed as

a. Transduction

b. Induction

c. Transfection

d. Infection

Q. The method of DNA replication proposedby Watson and Crick is

a. Semi conservative

b. Conservative

c. Dispersive

d. Rolling loop

Q. The distance between each turn in thehelical strand of DNA is

a. 20 Ao

b. 34 Ao

c. 28 Ao

d. 42 Ao

Q. Self-replicating, small circular DNA molecules present in bacterial cell are known

a. Plasmid

b. Cosmids

c. Plasmomeros

d. plastides

Q. Western blotting is the technique used inthe determination of

a. RNA

b. DNA

c. Proteins

d. All of these

Q. m RNA synthesis from DNA is termed

a. Transcription

b. Transformation

c. Translation

d. Replication