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Daily-mcqs 19 Jul 2025

Current Affairs MCQs for UPSC & State PSC Exams 19 Jul 2025

Current Affairs MCQs for UPSC & State PSC Exams

Q1:

With reference to Mitochondrial Donation Technology, consider the following statements:

1.   It involves replacing the nuclear DNA of the mother with that of a donor.

2.   It can prevent the transmission of mitochondrial diseases from mother to child.

3.   The baby born through this technique has three genetic contributors.

Which of the statements given above is/are correct?

A: 1 and 2 only

B: 2 and 3 only

C: 1 and 3 only

D: 1, 2 and 3

Show

Answer: B

Explanation:

Statement 1 is incorrect: The nuclear DNA of the mother is retained. It is the faulty mitochondria (which has its own DNA) that is replaced with healthy ones from a donor.

Statement 2 is correct: The technique prevents the transmission of mitochondrial diseases by replacing faulty mitochondria.

Statement 3 is correct: The resulting baby has nuclear DNA from two parents and mitochondrial DNA from a donor, making it a child with three genetic contributors.

Q2:

Consider the following advantages of Mitochondrial Donation Technology:

1.   It allows women with 100% mitochondrial mutation load to have genetically healthy children.

2.   It completely eliminates all of the mother’s faulty mitochondria.

3.   It can potentially reduce the incidence of rare genetic disorders.

Which of the above statements is/are correct?

A: 1 and 2 only

B: 1 and 3 only

C: 2 and 3 only

D: 1, 2 and 3

Show

Answer: B

Explanation:

Statement 1 is correct: The technology helps women with 100% mutation load, who otherwise have no viable healthy eggs, to conceive genetically related healthy children.

Statement 2 is incorrect: It does not completely eliminate faulty mitochondria; some remnants may remain, but at levels too low to cause disease.

Statement 3 is correct: By preventing the transmission of mitochondrial disorders, it can help reduce the incidence of these rare genetic diseases.

Q3:

Which three countries have higher total installed renewable energy capacity (including large hydro) than India as of 2024?

A: China, United States, Germany

B: China, Brazil, United States

C: United States, Brazil, Japan

D: China, United States, Brazil

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Answer: D

Explanation:

As per data available in 2024, India ranked fourth globally in total installed renewable energy capacity, when large hydro is also included. The top three countries were:

1. China – the global leader in solar, wind, and hydro power.

2. United States – with extensive wind and solar capacity.

3. Brazil – due to its massive reliance on hydropower for electricity.

Q4:

Consider the following statements about INS Tamal:

1.   INS Tamal is the first vessel of the Tushil-class frigates.

2.   It is equipped with BrahMos supersonic cruise missiles.

3.   Around 26% of its components are indigenously sourced.

Which of the statements given above is/are correct?

A: 1 and 2 only

B: 2 and 3 only

C: 1 and 3 only

D: 1, 2 and 3

Show

Answer: B

Explanation:

Statement 1 is incorrect because INS Tamal is the second vessel of the Tushil-class, not the first.

Statement 2 is correct; the ship carries the BrahMos supersonic cruise missile system.

Statement 3 is correct; about 26% of its components are indigenously sourced, including BrahMos and HUMSA-NG sonar.

Q5:

Consider the following statements about the Javelin Anti-Tank Guided Missile (ATGM):

1.   It is a third-generation fire-and-forget missile using infrared imaging for guidance.

2.   It has a top-attack capability designed to target the weaker armor on tanks’ roofs.

3.   It was jointly developed by India and the United States.

Which of the statements given above is/are correct?

A: 1 and 2 only

B: 2 and 3 only

C: 1 and 3 only

D: All of the above

Show

Answer: A

Explanation:

Statement 1 is correct .The Javelin ATGM is a third-generation missile characterized by its fire-and-forget capability. It uses infrared imaging (IIR - Imaging Infrared) for guidance, which allows it to detect the heat signature of tanks and other armored vehicles and precisely target them.

Statement 2 is correct. The Javelin is specifically designed with a top-attack flight profile. It flies upwards after launch and then dives down onto the target, striking the tank from above.