GATE BT discipline:life-sciences PYQs & Answers — Page 30

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Questions 291–300 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 30 of 65

The probability density function of a random variable

. The probability

(rounded off to two decimal places) is ________________.

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The maximum value of the function

for

is ________________.

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The specific growth rate of a yeast having a doubling time of 0.693 h (rounded off to nearest integer) is ________________ h

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A fermentation broth of density 1000 kg m

and viscosity 10

kg m

is mixed in a 100 L fermenter using a 0.1 m diameter impeller, rotating at a speed of 2 s

. The impeller Reynolds number is ________________.

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For a pure species, the slope of the melting line

at −2 °C is −5.065×10

Pa K

. The difference between the molar volumes of the liquid and solid phase at −2 °C is −4.5×10

mol

. The value of the latent heat of fusion (rounded off to nearest integer) is ________________ J mol

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Which of the following conditions will contribute to the stability of a gene pool in a natural population?

P. Large population Q. No net mutation R. Non-random mating S. No selection

Your answerChoose one option.

P only

P and Q only

P and R only

P, Q and S only

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Match the media component used in mammalian cell culture (Column I) with its respective role (Column II).

Column I P. Hydrocortisone Q. Fibronectin R. Epidermal growth factor S. Riboflavin

Column II

Mitogen

Vitamin

Hormone

Cell attachment

Your answerChoose one option.

P-3, Q-4, R-1, S-2

P-3, Q-4, R-2, S-1

P-4, Q-3, R-1, S-2

P-4, Q-3, R-2, S-1

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Match the cell type (Column I) with its function (Column II).

Column I P. B cells Q. Neutrophils R. T cells S. Mast cells

Column II

Humoral immunity

Cytotoxicity

Histamine-associated allergy

Phagocytosis

Your answerChoose one option.

P-1, Q-2, R-3, S-4

P-1, Q-4, R-2, S-3

P-4, Q-3, R-1, S-2

P-4, Q-3, R-2, S-1

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matrix

has an eigenvalue

with eigenvector

and another eigenvalue

, with eigenvector

. The matrix

Your answerChoose one option.

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Match the stationary phase (Column I) with its corresponding chromatography technique (Column II).

Column I P. Protein A Q. Sephadex R. Phenylsepharose S. Diethylaminoethyl cellulose

Column II

Size exclusion chromatography

Ion-exchange chromatography

Affinity chromatography

Hydrophobic interaction chromatography

Your answerChoose one option.

P-1, Q-4, R-2, S-3

P-3, Q-1, R-4, S-2

P-3, Q-4, R-2, S-1

P-4, Q-1, R-3, S-2

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GATE BT discipline:life-sciences PYQs

Question 31

Question 32

Question 33

Question 34

Question 35

Question 36

Question 37

Question 38

Question 39

Question 40