Basic Quiz – 15 September 2026 | Science & Tech

Answer: (d)

Explanation:

• About GenCast: It is a machine learning weather prediction model that uses a diffusion model approach. It generates multiple forecasts to capture the complex behaviour of the atmosphere.
  • The GenCast model makes predictions of several variables such as temperature, pressure, humidity and wind speed at the surface and at different heights.
  • It takes the current state of the atmosphere and produces estimates of its future state.
  • It is designed for probabilistic weather forecasting.
• Hence, option (d) is the correct answer.

Answer: (c)

Explanation:

• About Mitosis: It is a process of cell division that generally results in two genetically identical daughter cells developing from a single parent cell.
• Mitosis is associated with growth, repair and asexual reproduction in many organisms. Hence, Statement-II is not correct.
• It maintains chromosome number in the daughter cells and ordinarily produces genetically identical daughter cells.
• Hence, option (c) is the correct answer.

Answer: (d)

Explanation:

• Statement 1 is not correct: Antariksha Abhyas-2024 was conducted by the Defence Space Agency, not ISRO.
  • It was a three-day exercise aimed at strengthening India’s preparedness for space-based military operations.
• Statement 2 is not correct: The exercise was intended to improve understanding of space-based assets and services and operational dependence on space segments among stakeholders.
  • It also sought to identify vulnerabilities in military operations in the event of denial or disruption of space-based services.
• Hence, option (d) is the correct answer.

Answer: (b)

Explanation:

• Transfer RNA (tRNA) carries specific amino acids to the ribosome during protein synthesis.
• Although it is single-stranded, complementary regions within the molecule undergo intramolecular base pairing, producing its characteristic cloverleaf secondary structure.
• mRNA carries genetic information from DNA for translation.
• rRNA is a structural and catalytic component of ribosomes.
• Hence, option (b) is the correct answer.

Answer: (a)

Explanation:

• A traditional clinical thermometer is designed specifically for measuring human body temperature, rather than a very wide range of temperatures.
• Its conventional scale is approximately 35°C to 42°C, with normal body temperature commonly taken as about 37°C.
• Therefore, Statement-II explains why the clinical thermometer uses this relatively narrow temperature range.
• Hence, option (a) is the correct answer.