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Subject: Biology, asked on 2/4/17

explain these lines under molecular diagnosis:
a single stranded DNA or RNA tagged with a radioactive molecule (probe) is allowed to hybridise  to its complementary DNA in a clone of cells followed by detection using autoradiography. the clone having the mutated gene will hence not appear on photographic film, as probe will not have complementaarity with the mutated gene.

Subject: Biology, asked on 1/4/17

How silencing of mRNA takes place

Subject: Biology, asked on 31/3/17

why is functional insulin produced by rDNA technology considered better than the ones used earlier by diabetic patients?
 

Subject: Biology, asked on 31/3/17

name the source and types of cry genes isolated from it for incorporation into crops by biotechnologists. explain how these genes brought beneficial changes in the genetically modified crops.

Subject: Biology, asked on 25/3/17

Is it necessary to opt maths with biology in class 12 to pursue in biotechnology?
Can't we pursue it without maths?

Subject: Biology, asked on 4/2/17

Please answer the question.

9. Suryakant had banana plantation in his field. Quality of the fruit was excellent but the yield suffered due to infection of the
plants by a virus. Suggest a fast and efficient method to get healthy and a large number of plants in the next generation without 
compromising on the existing quality. Justify the selection of your method. 

Subject: Biology, asked on 7/1/17

Explain the technique of RNAi

Subject: Biology, asked on 3/12/16

" A single stranded DNA or RNA, tagged with a radioactive molecule (probe) is allowed to hybridise its complementary DNA in clone of cells followed by detection using autoradiography." The clone having mutated gene will not appear on the photographic film. "    Experts, I have not been able to understand this paragraph. Can u please explain in an easy way, maybe with diagrams? Thank you so much!

Subject: Biology, asked on 24/11/16

how many varieties of rice in the world, the NCERT text gives two values in two chapters.. in one place it says 2 lakh other chapter it says 50,000. please tell me the correct one ..!!

Subject: Biology, asked on 22/11/16

What are Bt crops? Explain in brief about how they are produced with a suitable example.​

Subject: Biology, asked on 22/11/16

Write short on cDNA library.

Subject: Biology, asked on 11/11/16

Explain RNA Interference in detail with step wise diagram?

Subject: Biology, asked on 23/10/16

how can transposons be a source of rna interference? and y is a cDNA inserted into lymphocytes for curing ADA deficiency? what if a normal dna is inserted and not a cdna?

Subject: Biology, asked on 25/9/16

explain r plasmids, f plasmids and col plasmids. how do they all differ?

Subject: Biology, asked on 25/9/16

which hybridomas are obtained from these cells?

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