GATE (Graduate Aptitude Test in Engineering) Microbiology: Questions 78 - 82 of 125

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Question 78

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Appeared in Year: 2020

Question

Numeric Answer▾

a bacterial culture containing 3 × 105 live cells was exposed to a newly developed sterilizing agent. After 30 minutes of exposure, 3 live cells remained in culture. The decimal reduction time (in minutes) for the new agent is ________.

Question 79

Appeared in Year: 2019

Question

MCQ▾

Microbes make up about ________ of earth՚s living material by weight.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 80

Appeared in Year: 2019

Question

MCQ▾

What is the enzyme involved in the following reaction?

Choices

Choice (4)Response

a.

Glycerol phosphate dehydrogenase

b.

Zymase

c.

Glycerol kinase

d.

Lipase

Question 81

Appeared in Year: 2017

Question

MCQ▾

Which one of the following antibiotics is NOT produced by Streptomyces sp. ?

Choices

Choice (4)Response

a.

Neomycin

b.

Amphotericin B

c.

Vancomycin

d.

Gentamicin

Question 82

Appeared in Year: 2015

Question

Match List-Ⅰ List-Ⅱ▾

Match scientists in Group I with terms related to their major scientific contributions in Group II.

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

Bordet

(i)

Complement

(B)

Waksman

(ii)

Streptomycin

(C)

Sanger

(iii)

DNA sequencing

(D)

Watson and Crick

(iv)

DNA double helix structure

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (i)
  • (ii)
  • (iv)

b.

  • (iv)
  • (i)
  • (ii)
  • (iii)

c.

  • (ii)
  • (iii)
  • (i)
  • (iv)

d.

  • (i)
  • (ii)
  • (iii)
  • (iv)

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