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Strategies for Enhancement in Food Production

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Polyethylene glycol method is used for

  • gene transfer without a vector

  • biodiesel production

  • seedless fruit production

  • energy production from sewage


A.

gene transfer without a vector

Introduction DNA into plant cells without the involvement of a biological agent and leading to stable transformation is known as direct gene transfer. There are various methods for direct gene transfer, one of which is a chemical method. Certain chemicals,polyethene Glycol), polyvinyl alcohol and calcium phosphate enhance the uptake of DNA by plant protoplast. PEG and calcium phosphate are thought to precipitate the DNA onto the outer surface of plasmalemma and the precipitate is taken up by the endocytosis.

Introduction DNA into plant cells without the involvement of a biological agent and leading to stable transformation is known as direct gene transfer. There are various methods for direct gene transfer, one of which is a chemical method. Certain chemicals,polyethene Glycol), polyvinyl alcohol and calcium phosphate enhance the uptake of DNA by plant protoplast. PEG and calcium phosphate are thought to precipitate the DNA onto the outer surface of plasmalemma and the precipitate is taken up by the endocytosis.

500 Views

Define the livestock.

Domesticated animals reared using agricultural practices for the production of milk, hide, flesh, etc for human use.
843 Views

What was the aim of white revolution ?

Increased milk production.
612 Views

Who is called the Father of White revolution ?

Dr. V. Kurien.
647 Views

Explain why Inbreeding cannot be continued for long .

Inbreeding if continued causes Inbreeding depression that means  productivity and fertility of the organisms is eventually reduced. Inbreeding produces homozygous condition and exposes harmful recessive genes.
583 Views

Give one example of each of indigenous and exotic milch breeds of cow.

Indigenous breed : Sahiwal;
Exotic breed : Brown swiss.
761 Views