TNPSC Prelims and Mains Notes-TNPSC Test Series
The ‘Make in India’ programme is primarily being impelled by the imperative to reduce arms import bills and ‘optimise’ defence expenditure – India’s FY2019 defence budget of USD 71.1 billion was the highest in South Asia and the third-highest in the world, and for the past five years, it has been the world’s second largest … Read more
IRS-1A, the first of the series of indigenous state-of-art operating remote sensing satellites, was successfully launched into a polar sun-synchronous orbit on March 17, 1988 from the Soviet Cosmodrome at Baikonur. The successful launch of IRS-1A was one of the proudest moments for the entire country, which depicted the maturity of satellite to address the … Read more
Q. Comets Ans: Comets originate in outer solar system and are formed of cosmic snowballs of frozen gases, rock and dust that orbit the sun. When a comet’s orbit bring it close to the sun ,it heat up and spewn dust and gases into a giant glowing head larger than most planets. Q. Dark … Read more
Gene Chromosomes They are located on the chromosomes. Chromosomes are the packed structure of a DNA with proteins. Genes are composed of either DNA or RNA Chromosomes composed of DNA, RNA and histones. According to Human genome project, there are 30,000 genes in the human cell. In Human cell there are 23 pair of … Read more
The SSLV is being designed by Indian scientists to carry smaller commercial satellites into the low-earth orbit less than 2,000 km above the earth’s surface. The SSLV can launch dedicated payloads or multiple satellites into low earth orbit or sun-synchronous orbit. The payload will be 300 kg to sun synchronous orbit (SSO) and 500 kg … Read more
Mitosis When the chromosomes condense during cell division, they have already undergone replication. Each chromosome thus consists of two identical replicas, called chromatids, joined at a point called the centromere. During mitosis the sister chromatids separate, one going to each daughter cell. Chromosomes thus meet the first criterion for being the repository of genes: they … Read more
. A new technological study reveals that by the year 2050, there will be need a for three times as much primary power and it will have to be three times as clean. There is no earthly technology now available, or capable of becoming available by the year 2050, that can solve the energy problem. … Read more
Urbanization is a key environmental issue as well. The rapid pace at which urbanization is taking place in the developing world has an impact on climate change and other global environmental issues. Cities account for more than two-thirds of the global energy demand and result in up to 80 per cent of global greenhouse gas … Read more
Salient features of the National Medical Commission Act, 2019 are as follows: The act sets up the National Medical Commission (NMC). Within three years of the passage of the Bill, state governments will establish State Medical Councils at the state level. The NMC will consist of 25 members, appointed by the central government. Functions of the … Read more
In vitro fertilisation: In vitro fertilization (IVF) is a complex series of procedures used to help with fertility or prevent genetic problems and assist with the conception of a child. During IVF, mature eggs are collected (retrieved) from ovaries and fertilized by sperm in a lab. Then the fertilized egg (embryo) or eggs (embryos) are transferred … Read more