Biotechnology and its Applications MCQs for NEET — Zoology Questions with Answers

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Due to what food supply has increased during green revolution?

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Explanation

Due to use of agrochemicals fertiliser and pesticide the yield during green revolution was immense. 

The organism whose genetic material has been altered using genetic engineering is called as -

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Explanation

A genetically modified organism (GMO) is an organism whose genetic material has been altered using genetic engineering techniques. This allows for the introduction of new traits or characteristics that are not naturally found in the organism. GMOs are widely used in agriculture to enhance crop yield, resistance to pests, and adaptability to environmental conditions.

Full form of GMO is -

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Explanation

The full form of GMO is Genetically Modified Organism. This term refers to organisms whose genetic material has been artificially manipulated through genetic engineering. The modification is typically done to achieve desired traits such as increased resistance to pests, improved nutritional content, or greater tolerance to environmental stress.

RNAi is a mechanism of to silence genes with the help of?

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Explanation

Double-stranded RNA-mediated interference (RNAi) is a simple and rapid method of silencing gene expression in a range of organisms

What were the earlier sources of Insulin?

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Explanation

The earlier sources of insulin were indeed from cattle (bovine) and pigs (porcine). Insulin was extracted from the pancreas of these animals. The amino acid sequence of bovine insulin differs slightly from human insulin, while porcine insulin is more similar to human insulin, making it a better substitute. This practice was common before the development of recombinant DNA technology that allows for the production of human insulin synthetically.

Modifications bygerm line gene therapy are heritable as -

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Explanation

In germ line gene therapy, the functional gene is incorporated into the genome of germ cells (sperm or eggs). This ensures that the modifications are heritable and will be passed on to future generations. Somatic gene therapy, on the other hand, targets only the somatic (body) cells and does not result in heritable changes.

Earlier which animals were used to test the safety of Polio Vaccine

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Explanation

Transgenic mice were earlier used to test the safety of the Polio Vaccine. These mice were genetically modified to be susceptible to poliovirus, making them suitable for vaccine testing.

Organisms which can be used to gain commercial benefits are called -

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Explanation

Organisms that can be used to gain commercial benefits are called bioresources. Bioresources refer to biological materials, particularly plants, animals, and microorganisms, that are used for economic gain.

Transgenic animals are produced by incorporation of Foreign gene into the -

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Explanation

Transgenic animals are produced by the incorporation of a foreign gene into the nucleus of a fertilized egg. This method ensures that the foreign gene is present in every cell of the developing organism, including germ cells, so the trait can be passed on to future generations.

The bacteria associated with plant genetic engineering are -

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