Advertisements
Advertisements
प्रश्न
Higher Order Thinking Skill (HOT)
Polyploids are characterised by gigantism. Justify your answer.
Advertisements
उत्तर
An organism having more than two set of chromosome is called polyploidy. It can be induced by physical agents such as heat or cold treatment, X-rays and chemical agents like colchicine. As organisms produced by polyploidy have more than two set of chromosomes they are gigantic.
APPEARS IN
संबंधित प्रश्न
Economically important crop plants with superior quality are raised by ______.
______ 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.
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.
Name three improved characteristics of wheat that helped India to achieve high productivity
With a neat labelled diagram explain the techniques involved in gene cloning.
