Advertisements
Advertisements
Question
Assertion: Hybrid is superior than either of its parentsReason: Hybrid vigour is lost upon inbreeding.
Options
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.
Advertisements
Solution
Assertion is correct and reason is wrong
APPEARS IN
RELATED QUESTIONS
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.
In vitro fertilisation means the fertilisation done inside the body.
Assertion: Colchicine reduces the chromosome number.
Reason: It promotes the movement of sister chromatids to the opposite poles.
Semi-dwarf varieties were introduced in rice. This was made possible by the presence of dwarfing gene in rice. Name this dwarfing gene.
Describe mutation breeding with an example.
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.
