What is called the effect of daylight on plant ?

Related MCQs

• One plant group kept for 12 hrs in day and 12 hrs in night and flowering is observed in it. Another plant group is kept similarly for day - night period and for very short time light is given during dark period it do not flower. What is such type of plant called ? (CBSE 2004)
• . In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt. AIPMT - 2004
• The production of new plant from the maternal plant is called. (CPMT=2003)
• Which type of plant is produce by plant tissue cultare.
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• Assertion (A) To give a scientific name of a plant there is ICBN Reason. (R) they have articles, photographs and recommendation to name a plant (PMT-2000)
• How can a biannual plant be converted into an annual plant?
• In a plant, gene "T" is responsible for tallness and its recessive allele "t" for dwarfness and "R" is reponsible for red colour flower and its recessive allele "r" of white flower colour. A tall and red flowered plant with genotype TtRr crossed with dwarf and red flowered ttRr. What is the percentage of dwarf - white flowered offspring of above cross ?
• . Inorder to find out the different types of gametes produced by a pea plant having the genotype AaBb it should be crossed to a plant with the genotype AIPMT - 2004
• From which plant and from which part of that plant Cocain drug is obtained ?