GATE (Graduate Aptitude Test in Engineering) Microbiology: Questions 34 - 38 of 125

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Question 34

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Appeared in Year: 2017

Question

Numeric Answer▾

one – ml sample of a bacterial culture was serially diluted to 105 times, and 46 colonies were obtained after plating this diluted sample on an agar medium. The number of cells present per ml in the undiluted original sample were________.

Question 35

Appeared in Year: 2016

Question

MCQ▾

Biofilm produced by bacteria is detected by

Choices

Choice (4)Response

a.

Basic fuchsin

b.

Saffranin

c.

Congo red

d.

Both c. and b. are correct

Question 36

Appeared in Year: 2017

Question

MCQ▾

unicellular eukaryotic organisms belong to which one of the following kingdoms of classification?

Choices

Choice (4)Response

a.

Animalia

b.

Plantae

c.

Monera

d.

Protista

Question 37

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Appeared in Year: 2020

Question

Numeric Answer▾

A continuous bacterial culture carried out in a chemostat is set to a flow rate of 40ml/hr. the culture volume is equivalent to that of a cubical container having 10cm sides. The dilution rate (in per hour, rounded off to two decimal places) of this system is ________.

Question 38

Appeared in Year: 2015

Question

MCQ▾

Which combination of the following statements about specialized transduction is TRUE?

(P) Specialized transducing phages can transport only certain genes between bacteria

(Q) Specialized transducing phages can transport any gene between bacteria

(R) Phage P-22 is a specialized transducing phage

(S) Phage lambda is a specialized transducing phage

Choose the Correct Option:

Choices

Choice (4)Response

a.

P and R only

b.

Q and R only

c.

P and S only

d.

Q and S only

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