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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
Economically important crop plants with superior quality are raised by ______.
Rice normally grows well in alluvial soil, but ______ is a rice variety produced by mutation breeding that grows well in saline soil.
The process of producing an organism with more than two sets of chromosome is called mutation.
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.
With a neat labelled diagram explain the techniques involved in gene cloning.
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.
