Science

DMPQ:What is genetic recombination and its importance?

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Genetic recombination is the process by which two DNA molecules exchange genetic information, resulting in the production of a new combination of alleles. In eukaryotes, genetic recombination during meiosis can lead to a novel set of genetic information that can be passed on to progeny. Most recombination is naturally occurring. During meiosis in eukaryotes, genetic … Read more DMPQ:What is genetic recombination and its importance?

DMPQ:Short note on radioactive dating.

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Radiocarbon dating is a method that provides objective age estimates for carbon-based materials that originated from living organisms. An age could be estimated by measuring the amount of carbon-14 present in the sample and comparing this against an internationally used reference standard. Radiocarbon, or carbon 14, is an isotope of the element carbon that is unstable … Read more DMPQ:Short note on radioactive dating.

Write a short Note on Cell Cycle.

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Cell cycle, the ordered sequence of events that occur in a cell in preparation for cell division. The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA(synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, … Read more Write a short Note on Cell Cycle.

DMPQ:Outline the difference between metallic and non metallic minerals?

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  Metallic Non Metallic Metallic mineralscontain metal in raw form. Nonmetallic donot contain metals. These metals aregenerally associated withigenous rocks. These metals aregenerallyassociated with sedimentary rocks. They are usually hard and have shine of their own. They are notusually hard and have no shine oftheir own. Examples: iron,copper, bauxite, lead and tin. Examples: salt,coal, mica,gypsum, … Read more DMPQ:Outline the difference between metallic and non metallic minerals?

DMPQ: Write short note on Molecular farming?

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Molecular farming is a new technology that uses plants to produce large quantities ofpharmaceutical substances such as vaccines and antibodies. It relies on the same method used to produce genetically modified (GM) crops – the artificial introduction of genes intoplants.A number of vaccines, antibodies and other therapeutic substances made in plants such as      tobacco, maize, … Read more DMPQ: Write short note on Molecular farming?

Quick Revision- Contribution of Indian Scientist

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Contribution of Indian  Scientist:   Scientist Achievement Homi Jehangir Baba Father of Indian Nuclear Programme, Carried out first nuclear test 1974, Atomic energy establishment was renamed Bhabha Atomic research centre. Venkatraman Ramakrishna Indian origin biologist cum scientist won nobel prize in 2009 in chemistry. He pioneered in the studies of the structure and function of … Read more Quick Revision- Contribution of Indian Scientist

DMPQ- PSLV-C45

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India’s Polar Satellite Launch Vehicle (PSLV-C45)  successfully launched EMISAT and 28 international customer satellites from Satish Dhawan Space Centre (SDSC) SHAR in Sriharikota. This flight marked the first mission of PSLV-QL, a new variant of PSLV with four strap-on motors. EMISAT is a satellite built around ISRO’s Mini Satellite-2 bus weighing about 436 kg. The … Read more DMPQ- PSLV-C45

DMPQ:What is Pet coke?

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Petroleum coke or pet coke, is a solid carbon rich(90% carbon and 3% to 6% sulfur) material derivedfrom oil refining. It is categorized as a “bottom of the barrel” fuel.It is a dirtier alternative to coal and emits 11% moregreenhouse gases than coal and nearly 17 timesmore sulphur than coal. Petcoke is a source of … Read more DMPQ:What is Pet coke?