UPSC Prelims 2020 Science & Technology

In the context of recent advances in human reproductive technology, “Pronuclear Transfer” is used for:

Which of the following statements are correct regarding the general difference between plant and animal cells? 1. Plant cells have cellulose cell walls whils...

With reference to Visible Light Communication (VLC) technology, which of the following statements are correct? 1. VLC uses electromagnetic spectrum wavelengt...

With reference to carbon nanotubes, consider the following statements: 1. They can be used as carriers of drugs and antigens in the human body. 2. They can b...

With reference to “Blockchain Technology”, consider the following statements: 1. It is a public ledger that everyone can inspect, but which no single user co...

In India, why are some nuclear reactors kept under “IAEA Safeguards” while others are not?

In India, the term “Public Key Infrastructure” is used in the context of

“The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long, with...

Consider the following statements: 1. Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent. 2. A person’s genom...

Consider the following activities: 1. Spraying pesticides on a crop field 2. Inspecting the craters of active volcanoes 3. Collecting breath samples from spo...

What is the importance of using Pneumococcal Conjugate Vaccines in India? 1. These vaccines are effective against pneumonia as well as meningitis and sepsis....

Steel slag can be the material for which of the following? 1. Construction of base road 2. Improvement of agricultural soil 3. Production of cement Select th...