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प्रश्न
______ is the chemical used for doubling the chromosomes.
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उत्तर
Colchicine is the chemical used for doubling the chromosomes.
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संबंधित प्रश्न
In a hexaploid wheat( 2n = 6 x = 42 ) the haploid (n) and the basic(x) number of chromosomes respectively are ______.
Economically important crop plants with superior quality are raised by ______.
Iron fortified rice variety determines the protein quality of the cultivated plant
Golden rice is a hybrid.
Assertion: Hybrid is superior than either of its parentsReason: Hybrid vigour is lost upon inbreeding.
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.
Describe mutation breeding with an example.
Higher Order Thinking Skill (HOT)
Polyploids are characterised by gigantism. Justify your answer.
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’.
- What is P, Q and R?
- State the importance of ‘R’ in India.
