GATE BT format:mcq PYQs & Answers — Page 17

Questions 161–170 of 389. Imported answers require independent review unless marked reviewed.

Topic practice 389 questionsPage 17 of 39

The recognition sequences of four Type-II restriction enzymes (RE) are given below. The symbol (↓) indicates the cleavage site. Identify the RE that generates sticky ends.

Your answerChoose one option.

RE1 - 5′ G↓ATCC 3′

RE2 - 5′ TG↓CAG 3′

RE3 - 5′ CC↓GG 3′

RE4 - 5′ AG↓CT 3′

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Among individuals in a human population, minor variations exist in nucleotide sequences of chromosomes. These variations can lead to gain or loss of sites for specific restriction enzymes. Which of the following technique is used to identify such variations?

Your answerChoose one option.

Polymerase dependent fragment insertion

Real-time polymerase chain reaction

Restriction fragment length polymorphism

Reverse transcriptase polymerase chain reaction

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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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Which of the following statements are CORRECT for a controller? P. In a proportional controller, a control action is proportional to the error Q. In an integral controller, a control action is proportional to the derivative of the error R. There is no “offset” in the response of the closed-loop first-order process with a proportional controller S. There is no “offset” in the response of the closed-loop first-order process with a proportional-integral controller

Your answerChoose one option.

P and Q only

P and R only

P and S only

Q and S only

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Which of the following are CORRECT about protein structure?

P. Secondary structure is formed by a repeating pattern of interactions among the polypeptide backbone atoms Q. Tertiary structure is the three-dimensional arrangement of the polypeptide backbone atoms only R. Quaternary structure refers to an assemble of multiple polypeptide subunits

Your answerChoose one option.

P and Q only

P and R only

Q and R only

P, Q and R

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The enzymes involved in ubiquitination of cell-cycle proteins are

Your answerChoose one option.

E₁ and E₂ only

E₁ and E₃ only

E₁ and E₄ only

E₁, E₂ and E₃

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GATE BT format:mcq PYQs

Question 25

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Question 36

Question 37

Question 38

Question 39

Question 40

Question 41

Question 42

Question 43