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प्रश्न
Assertion: Colchicine reduces the chromosome number.
Reason: It promotes the movement of sister chromatids to the opposite poles.
विकल्प
Assertion is correct and reason is wrong
Reason is correct and the assertion is wrong
Both assertion and reason is correct
Both assertion and reason is wrong.
उत्तर
Both assertion and reason is wrong.
APPEARS IN
संबंधित प्रश्न
______ is the chemical used for doubling the chromosomes.
Rice normally grows well in alluvial soil, but ______ is a rice variety produced by mutation breeding that grows well in saline soil.
A group of plants produced from a single plant through vegetative or asexual reproduction are called a pureline.
Golden rice is a hybrid.
Give the name of wheat variety having higher dietary fibre and protein.
Name three improved characteristics of wheat that helped India to achieve high productivity
Biofortification may help in removing hidden hunger. How?
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.
