a. They can be G Clow or G c high c. They can be gram positive or gram negative

Question

a. They can be G Clow or G c high c. They can be gram positive or gram negative They are 24. ay or by the presence of What characterizes not produce oxygen by photosynthesis mold: b. Single cell structure c. d. AN of the of cell above 25. An organism transmits a disease is referred to as a: that Plague 26. Helicobacter pylori is associated with b, Sore throat c, Food poisoning e. Peptic ulcers 27. are eukaryotic parasites transmitted by bites of blood feeding insects lb. Hemoflagellate C. Helminths d. Bacteria 28. can be multicellular or unicellular a. Mold b. Fungi C. Fluke d. helminths 29, Cancer is an example of: a. Acute infection b, Persistent infection c. Latent infection 30. Transfer of DNA from one living bacterium to another using bacteriophage: a. Transduction b. Translation c. Transformation d. Conjugation 31. Bacteriophage DNA is inserted into the bacterial genome in: a. lytic cycle b, lysogenic cycle C. Both 2. causes various neurological diseases referred to as spongiform encephalopathy

Explanation / Answer

24.The correct answer is : a.mycelium

Reason: mold is a fungus that is multicellular and consists of mycelium.

25.The correct answer is:d.vector

Reason:Vectors are living organisms that are reservoirs of infectious diseases that they transmit.

26.The correct answer is:e.peptic ulcers

Reason: H.pylori causes ulcers in lining of stomach and small intestine.

27.The correct answer is:b.hemoflagellate

Reason:Hemoflagellates like trypanosomes are parasites of blood transmitted by biting of tse tse fly.

28.The correct answer is:b.fungi

Reason: Fungus are mostly multicellular except yeast which is unicellular.

29.The correct answer is:b.persistent

Reason:Persistent infections last long and cancer is one such infection.

30.The correct answer is:a.transduction

Reason: Transduction best explains the above process.

31.The correct answer is:b.lysogenic cycle

Reason: Lysogenic cycle best explains the above process.

32.The correct answer is: b.prion

Reason:Spongiform encephalopathy is a prion disease.

33.The correct answer is:b.Staphylococci aureus

Reason: S.aureus can grow under high osmotic pressure.

34.The correct answer is: b.False

Reason:Mycoses refers to fungal infection.

35.The correct answer is:d.all of the above

Reason: All the above points characterises viruses.

36.The correct answer is:c.Obligate intracellular parasite

Reason: These parasites are reproduce and live only inside living cells.

37.The correct answer is:a.It is also called DNA replication.

Reason:DNA replication refers to DNA synthesis.

38.The correct answer is:c.Herpes

Reason:Herpes is recurrent.

39.The correct answer is:b.false

Reason: Both the terms are different.

40.The correct answer is:b.

Reason:Normal flora is present from birth till death.

41.The correct answer is:b.Rickettsia

Reason:Rickettsia causes rocky mountain spotted fever.

42.The correct answer is:c.

Reason: The above option best defines epidemic.

43.The correct answer is:c.non communicalble disease.

Reason:Tetanus is a non communicable disease.

44.The correct answer is:a.local infection

Reason: Local/localised infection refers to infection of a specific areaa or organ of body.

45.The correct answer is:b.lysogenic cycle

Reason:Lysogenic cycle continues after destruction of host cells.

46.The correct answer is:d.all of the above

Reason: all of the above RNAs participate in translation.

47.The correct answer is:c.capsid

Reason: Capsid is outer protein cover of virus.

48.The correct answer is: a.True

Reason: Digestive system is simple with no anus.

49.The correct answer is:a.True

Reason: prions are proteins that cause neurological diseases.

50.The correct answer is:b.nasocomial infection

Reason: Nasocomial infections are hospital acquired.

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