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Surabhi Tiwari 7 years ago

Rice( Oryza sativa) is one pf the most important crops in the world . The rice genome is 3.5 times the size of the Arabidopsis genome and the third largest public genome project undertaken to date , behind the human and mouse genomes.
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Mr. Singh 7 years ago

Positive effect of genetic engineering Animals husbandry Ebola virus

Mr. Singh 7 years ago

Cancer
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Make your own notes with minimum words with headings and sub - headings
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Sunder Singh 7 years ago

Tetanus antitoxin produce antibodies which neutralize the endotoxin.
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Yogita Ingle 7 years 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.

  • 4 answers

Sunder Singh 7 years ago

It is not matter of lines give point to point answer and highlight the important points

Himanshu Pal 7 years ago

Its not about quantity its about quality and mentioning the important terms

Pragya Upadhyay 7 years ago

5-6 points including improtant *terms*
About 250_300words it means 1 page
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Sunder Singh 7 years ago

The ploidy of tetrad is haploid
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Deepa Singh 7 years ago

Seminal plasma along with sperm .
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Yogita Ingle 7 years 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.

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Deepa Singh 7 years ago

This method is suited for introducing recombinant DNA in plant cell in which the plant cell are bombarded with high velocity micropartical of tugsten or gold coated with genetic material .

Yogita Ingle 7 years 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.

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Yogita Ingle 7 years 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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Vornica Singh 7 years ago

Diabetes or cancer or drug addiction or Dna isolation or extraction...
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Yogita Ingle 7 years 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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Brahmjot Kaur 7 years ago

The analysis of traits in several generations of a human family in the form of a family tree or diagram is called pedigree analysis.
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Yogita Ingle 7 years 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.

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Yogita Ingle 7 years 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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Garima Bansal 7 years ago

Breeding of crops to increase nutritional values
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Bhisham Gora 7 years ago

certain birds lay their eggs in the nests of other birds for incubation, hatching and rearing of young ones is known as brood parasitism. For example cuckoo in crow's nest.
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Diksha Yadav 7 years ago

In linkage the genes that transfer to next generation without any change or any crossing over but in recombination genes that are transfer are crossed over or when transfer to next generation then contain variation
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1. Dams are extremely expensive to build and must be built to a very high standard. 2. The high cost of dam construction means that they must operate for many decades to become profitable. 3. The flooding of large areas of land means that the natural environment is destroyed. 4. People living in villages and towns that are in the valley to be flooded, must move out. This means that they lose their farms and businesses. In some countries, people are forcibly removed so that hydro-power schemes can go ahead. 5. The building of large dams can cause serious geological damage. For example, the building of the Hoover Dam in the USA triggered a number of earth quakes and has depressed the earths surface at its location.
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Bhisham Gora 7 years ago

Reasons are 1.narrowly utilitarian (direct use) 2.broadly utilitarian (indirect use) 3.ethical
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Bhisham Gora 7 years ago

1.habitat loss and fragmentation 2.over -exploitation 3.alien species and invasions 4.co-extinction
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Anjali Attri 7 years ago

These are the transgenic crops produced by in- vitro process with high yield ,quality and quantity.
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Yogita Ingle 7 years 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. 

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Gaurav Seth 7 years 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.

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