GATE XL 2025 Paper 1 — page 23

Questions 67–69 of 122. Imported answers require review unless explicitly marked reviewed.

India is aiming to be free of tuberculosis by 2025. One of the key approaches for this program is DOTS. Which one of the following options is the full form of DOTS?

Your answerChoose one option.

Directly observed therapy short-course

Directly observed tuberculosis short-course

District operated therapy system

Directly operated therapy short-course

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Correctly match the bacterial type in Column I with their corresponding environmental niche in Column II.

Column I P. Psychrophile Q. Barophile R. Mesophile S. Halophile

Column II i. Pressure greater than 380 atm ii. Temperature between 15°C and 45°C iii. Temperature below 15°C iv. pH less than 3.0 v. Salt concentration greater than 2M

Your answerChoose one option.

P - iii; Q - i; R - ii; S - v

P - ii; Q - iii; R - i; S - v

P - i; Q - iv; R - iii; S - v

P - v; Q - iii; R - iv; S - i

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Robert Koch used a meat-infused nutrient medium for which one of the following purposes?

Your answerChoose one option.

To grow disease causing microorganisms.

To demonstrate presence of microorganisms in air.

To test the efficiency of sterilization approaches.

To demonstrate antimicrobial activity of soil isolates.

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2025 · Paper 1

Question 67

Question 68

Question 69