Correct Answer :  

Note : In our opinion the question is wrong.

Statement 1 is how we define recombinant DNA technology,
Statement 2 is also right and the process is called as polynucleotide synthesis.
Statement 3 is referring to polymerase chain reaction and statement 4 is all about tissue culture.

Correct Answer : Option (D) - 1, 2 and 3

Note :

Correct Answer : Option (D) - 1, 2 and 3

Note : Wearable technology works in the health care space eg fitness and sleep trackers like embrace help record heart rate and sleep pattern. It can be connected through GPS and can identify locations. It also assists the hearing-impaired persons. Hence all the statements are correct.

Correct Answer : Option (A) - 1, 2 and 4

Correct Answer :   'Gravitational waves' were detected.

Note :

Correct Answer : Option (B) - 2 and 3 only

Note : Scientists also believe that the practice of adding antibiotics to agricultural feed promotes drug resistance. More than half of the antibiotics produced in the United States are used for agricultural purposes. 1, 2 However, there is still much debate about whether drug-resistant microbes in animals pose a significant public health burden.

Source : NIAID

Correct Answer :   A molecular scissors used in targeted gene editing

Note : The key step in editing an organism‘s genome is selective targeting of a specific sequence of DNA. Two biological macromolecules, the Cas9 protein and guide RNA, interact to form a complex that can identify target sequences with high selectivity. The Cas9 protein is responsible for locating and cleaving target DNA, both in natural and in artificial CRISPR/Cas9 systems.

Correct Answer :   Hepatitis B, unlike Hepatitis C, does not have a vaccine.

Note : A hepatitis B vaccine protects against hepatitis B virus (HBV) infection, a contagious disease that damages the liver. The vaccine is given as a shot. Examples of hepatitis B vaccines approved by the U.S. Food and Drug Administration (FDA) to prevent HBV infection include Engerix-B and Recombivax HB (both brand names). It proves that Hepatitis B does have a vaccine and hence, option (b) is not correct.

Correct Answer :   NITI Aayog

Note : The Atal Innovation Mission(AIM) is a flagship initiative of NITI Aayog.

Atal Innovation Mission (AIM) including Self-Employment and Talent Utilization (SETU) is Government of India‘s endeavour to promote a culture of innovation and entrepreneurship. Its objective is to serve as a platform for promotion of world-class Innovation Hubs, Grand Challenges, Start-up businesses and other self-employment activities, particularly in technology driven areas.

Correct Answer :   The Rules provide for exact and elaborate criteria for the identification of sites for landfills and waste processing facilities.

Note : The new rules are now applicable beyond municipal areas and have included urban agglomerations, census towns, notified industrial townships, areas under the control of Indian Railways, airports, special economic zones, places of pilgrimage, religious and historical importance, and State and Central Government organisations in their ambit.

Waste generators would now have to now segregate waste into three streams Biodegradables, Dry (Plastic, Paper, metal, Wood, etc.) and Domestic Hazardous waste (diapers, napkins, mosquito repellants, cleaning agents etc.) before handing it over to the collector.

For census towns with a population below 1 million or for all local bodies having a population of 0.5 million or more, common, or stand-alone sanitary landfills will have to be set up in three years time. Also, common, or regional sanitary landfills to be set up by all local bodies and census towns with a population under 0.5 million will have to be completed in three years