Showing posts with the label MicrobiologyShow All

Polyhedrin protein is associated with which one of the following viruses?

6/27/2022 08:25:00 pm

A. HIV B. HSV C. RSV D. NPV

First use of pure microbiological process made by _________.

6/26/2022 06:23:00 pm

A. Chaim Weizmann B. Louis Pasteur C. Alexander Fleming D. Charles Darwin Explanation:…

All viruses consists of __________.

6/26/2022 05:29:00 pm

A. RNA and protein coat B. DNA and protein coat C. a nucleic acid and a protein coat D…

Which among the following are “Spirochetes”?

6/24/2022 10:00:00 pm

A. Streptomyces sp. B. Treponema pallidum C. Spirillum volutans D. Corynebacterium dip…

Which of the following is used in electron microscope?

6/24/2022 09:57:00 pm

A. electron beams and magnetic fields B. light waves C. magnetic fields D. electron be…

The greatest resolution in light microscopy can be obtained with ___________

6/24/2022 09:51:00 pm

A. Shortest wavelength of visible light used B. Longest wavelength of visible light us…

What is the approximate size of the bacterial cell?

6/24/2022 09:49:00 pm

A. 1mm in diameter B. 0.5 to 1.0 micrometer in diameter C. 2mm in diameter D. 2 microm…

Which of the following are produced by microorganisms?

6/24/2022 09:47:00 pm

A. Alcoholic beverages B. Fermented dairy products C. Breads D. All of the mentioned E…

Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed?

6/24/2022 09:44:00 pm

A. Condenser lens B. Magnifying lens C. Objective lens D. Eyepiece lens Explanation: C…

Which microorganism(s) among the following perform photosynthesis by utilizing light?

6/24/2022 09:43:00 pm

A. Cyanobacteria, Fungi and Viruses B.Viruses C. Cyanobacteria D. Fung Explanation: Cy…

Who is known as the father of Microbiology?

6/24/2022 09:40:00 pm

A. Edwin John Butler B. Ferdinand Cohn C. Robert Koch D. Antoni van Leeuwenhoek Explan…

The inhibitory action of penicillin is ______________.

6/24/2022 08:12:00 pm

A. cell wall synthesis B. cell growth C. protein synthesis D. none of these

Acid fast staining is used for which of the following bacteria?

6/24/2022 08:08:00 pm

A. Agrobacterium B. Mycobacterium C. E.Coli D. none of these

Cosmids have the cos site of ________.

6/24/2022 07:14:00 pm

A. Lambda B. plasmid C. ML3 D. YAC

Lambda has short single stranded 5' projection of _____________ .

6/24/2022 06:46:00 pm

A. 8 nucleotide length B.12nucleotide length C.10 nucleotide length D. 14 nucleotide l…

Endochitinase can be used as an ___________.

6/24/2022 06:37:00 pm

A. Antibacterial B. Antifungal C. Antiviral D. Antinematodal

Bacculoviruses are __________ .

6/23/2022 07:56:00 pm

A. DNA viruses B. RNA viruses C. Both a and b D. none of the above

Eco R1 is a/ an _________.

6/23/2022 06:35:00 pm

A. endonuclease B. polymerase C. exonuclease D. ligase

A synchronous culture is one in which majority of cells proceed through

6/23/2022 06:15:00 pm

A. lag phase B. log phase C. exponential phase D. each cell cycle phase ( S, G1, G2 an…

Two bacteria most useful in genetic engineering are _________.

6/23/2022 06:03:00 pm

A. Rhizobium and Azobacter B. Nitrosomonas and Klebsilla C. Escherichia and Agrobacte…