Free MCQs & Online Quiz Practice for Exams

Q: The genome of most animal and higher plant viruses is (ETEA 2014)

A) DNA

B) RNA

C) Both DNA and RNA

D) Either DNA or RNA

Q: Incubation period of HCV is (ETEA 2015)

A) 2–6 weeks

B) 4–10 weeks

C) 4–20 weeks

D) 2–26 weeks

Q: The only human disease caused by viroid is (ETEA 2015)

A) Hepatitis-A

B) Hepatitis-B

C) Hepatitis-C

D) Hepatitis-D

Q: The first symptom of leaf curl disease of cotton infection appears within (ETEA 2016)

A) 1–2 weeks

B) 2–3 weeks

C) 3–4 weeks

D) 4–5 weeks

Q: Which one is not an opportunistic disease related to HIV infection? (ETEA 2017)

A) Destruction of body immune system

B) Recurrent pneumonia

C) Pulmonary tuberculosis

D) Toxoplasmosis

Q: The three non-infective genes in HIV are (ETEA 2017)

A) gag pol rev

B) gag pol vpu

C) gag pol vpr

D) gag pol env

Q: The genome of influenza virus is made up of (ETEA 2019)

A) Single strand RNA

B) Double strand DNA

C) Single strand DNA

D) Double strand RNA

Q: The bacteriophage replicates only inside the (ETEA 2019)

A) Animal cell

B) Bacterial cell

C) Fungal cell

D) Both a and b

Q: For hepatitis B the incubation period is between (ETEA 2019)

A) 4–20 weeks

B) 6–20 weeks

C) 2–26 weeks

D) 2–6 weeks

Q: All of the following are bacterial diseases except (ETEA 2005)

A) Cholera

B) Tuberculosis

C) Typhoid

D) Poliomyelitis

Q: Milk is pasteurized by heating at (ETEA 2005)

A) 100°C for 30 sec

B) 100°C for 30 min

C) 71°C for 15 sec and 62°C for 32 min

D) 71°C for 32 min and 62°C for 15 sec

Q: Bacteria reproduce asexually by (ETEA 2005)

A) Mitosis

B) Meiosis

C) Conjugation

D) Fission

Q: Gram positive bacteria show maximum stain color due to (ETEA 2006)

A) Presence of capsules

B) More peptidoglycan

C) Less peptidoglycan

D) Presence of chitin

Q: The cell wall of gram positive bacteria is composed of (ETEA 2009)

A) Glycolipid

B) Peptidoglycan

C) Glycoprotein

D) Lipoprotein

Q: When a group of flagella are present at both ends of the bacterium it is called (ETEA 2009)

A) Amphitrichous

B) Lophotrichous

C) Peritrichous

D) Atrichous

Q: Oxygen producing organisms are (ETEA 2010)

A) Photosynthetic bacteria

B) Autotrophic bacteria

C) Cyanobacteria

D) Chlamydomonas

Q: Salmonella typhi is a (ETEA 2010)

A) Coccus bacterium

B) Bacillus bacterium

C) Spirillus bacterium

D) Nitrobacterium

Q: Which of the following diseases is not caused by bacteria? (ETEA 2011)

A) Tetanus

B) Smallpox

C) Tuberculosis

D) Diphtheria

Q: Bacteria maintain their survival by the formation of (ETEA 2013)

A) Hormogonia

B) Akinetes

C) Endospores

D) Zygospore

Q: A cell wall that is composed of sugar and amino acids is called (ETEA 2013)

A) Murein

B) Chitin

C) Lignin

D) Pectin