Economically important crop plants with superior quality are raised by ______.

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Economically important crop plants with superior quality are raised by Breeding.

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Methods of Plant Breeding for Crop Improvement

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Chapter 20 Breeding and Biotechnology
Evaluation | Q II. 1. | Page 297

The process of producing an organism with more than two sets of chromosome is called mutation.

Golden rice is a hybrid.

In vitro fertilisation means the fertilisation done inside the body.

Assertion: Hybrid is superior than either of its parentsReason: Hybrid vigour is lost upon inbreeding.

Assertion: Colchicine reduces the chromosome number.

Reason: It promotes the movement of sister chromatids to the opposite poles.

Give the name of wheat variety having higher dietary fibre and protein.

Semi-dwarf varieties were introduced in rice. This was made possible by the presence of dwarfing gene in rice. Name this dwarfing gene.

State the importance of biofertiliser.

Name three improved characteristics of wheat that helped India to achieve high productivity

Higher Order Thinking Skill (HOT)

‘P’ is a gene required for the synthesis of vitamin A. It is integrated with genome of ‘Q’ to produce genetically modified plant ‘R’.