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Samir Mughal??????️? 7 years, 2 months ago
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Yogita Ingle 7 years, 3 months ago
Sterilization is a permanent procedure to prevent pregnancy. This procedure is done by a healthcare provider in a controlled environment.
There are multiple methods of sterilization available to both men and women. Sterilization is up to the discretion of the individual. Men may decide to become sterile at any point they do not want the ability to impregnate a woman. Women may decide to become sterile at any point so long as they are not currently pregnant, in which case, they may have the procedure performed at any time after the child is born.
Posted by Karuna Bharti 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Back cross is a cross of a hybrid with one of its parents or any individual genetically similar to its parent in order to achieve offspring with genetic identity closer to that of the parent whereas a test cross is a type of back cross between the recessive homozygote and F1 generation.
Posted by Kanishka Chaudhary 7 years, 3 months ago
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Deepa Singh 7 years, 3 months ago
Yogita Ingle 7 years, 3 months ago
The gene gun method is a method used for genetically modifying plants.
With the use of a gene gun, the gene gun method delivers extra DNA directly into a plant’s nucleus. The method is also commonly called particle acceleration or microprojectile bombardment.
The gene gun can be used on seedlings or tissue culture cells. Prior to injecting the DNA into the plant tissue via the gene gun, either microscopic gold or tungsten particles are liberally coated with many hundreds of copies of genes. The particles are then forced into the nucleus with the gene gun.
Posted by Faizan Anwer 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Blood is the only fluid connective tissue present in our body and plays a significant role in transporting a wide variety of substances to different parts of the body. The main components of blood include RBC – red blood cells, White blood cells, blood platelets and the plasma. Blood is the main component of the human circulatory system.
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Posted by Dayananda V.S Dayananda V.S 7 years, 3 months ago
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Yogita Ingle 7 years, 2 months ago
Although all of us share 99% of our DNA, the remaining 0.1% is enough to make each of us unique. However, in the case of identical twins, they share 100% of their genes and have the same DNA. In this case, one egg and one sperm have fertilised and split into two separate embryos for twins to develop, explains Johannesburg-based gynaecologist and obstetrician, Mark van der Griendt.
If you’re expecting non-identical or fraternal twins, two separate eggs have been fertilised at the same time by two sperm and these embryos develop separately in the womb, says Dr van der Griendt. Non-identical twins are just like normal siblings, except that they happen to be born at the same time.
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Yogita Ingle 7 years, 2 months ago
Natural selection generally doesn't favor totally avirulent parasites (that is those which are totally harmless) because there is often positive association between virulence and transmissibility...... So, if virulence goes down, so does transmissibility---such strains will have lower fitness. That's why natural selection didn't lead to evolution of totally harmless (avirulent strains) parasites.
Posted by Anantha Krishnan 7 years, 3 months ago
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Yogita Ingle 7 years, 2 months ago
- Primary effluent is passed into large aeration tanks with constant mechanical agitation and air supply.
- Useful aerobic microbes grow rapidly and form flocs.
- Flocs are masses of bacteria and consumes organic matter and thus reduce the biochemical oxygen demand (BOD).
- When BOD of sewage has reduced, the effluent is passed into Settling tank.
- Here, the bacterial flocs settle and sediment is called activated sludge.
- A small part of the sludge is used as an inoculum in the aeration tank and the remaining part is passed into large tanks called anaerobic sludge digesters.
- In the digesters, heterotrophic microbes anaerobically digest bacteria and fungi in sludge producing mixture of gases such as methane, H2S, CO2 which forms the biogas.
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Yogita Ingle 7 years, 3 months ago
Red Data Book is the source which provides the important information about endangered species. It keeps a track record of about these animals. There are different Red Data Books for plants and animals.
Endangered species are the species of plants and animals that are at a high risk of getting extinct in their habitat. Endangered animals are threatened wild animals of a particular habitat.
Posted by Aastha Sharma 7 years, 3 months ago
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Gaurav Seth 7 years, 3 months ago
The net reaction of photosynthesis is
6CO2 + 12H2O → C6H12O6 + 6H2O + 6O2
--From this reaction, it is clear that to form one molecule of glucose, six molecules of carbon dioxide are required.
-- To answer why 12 molecules of water are required, here is the explanation.
--Products of light reaction required in dark reactions to form one molecule of glucose are 12 molecules of NADPH and 18 molecules of ATP.
-- For forming 2 molecules of NADPH from NADP+ , 2 molecules of water are required so that demand of 4 electrons and protons can be satisfied.
--Two molecules of water split to form1 molecule of oxygen and the respective number of electrons and hydrogen ions are also formed .
--Now for producing 12 molecules of NADPH , total 12 molecules of water are required.
Posted by Pratima Naik 7 years, 3 months ago
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