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

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

One Line Answer

Dee-geo-woo-gen a dwarf variety from China.

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Methods of Plant Breeding for Crop Improvement

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Chapter 20 Breeding and Biotechnology
Evaluation | Q VI. 2. | Page 298

Which method of crop improvement can be practised by a farmer if he is inexperienced?

In a hexaploid wheat( 2n = 6 x = 42 ) the haploid (n) and the basic(x) number of chromosomes respectively are ______.

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

A group of plants produced from a single plant through vegetative or asexual reproduction are called a pureline.

Iron fortified rice variety determines the protein quality of the cultivated plant

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.

State the importance of biofertiliser.

Biofortification may help in removing hidden hunger. How?

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’.