Related InterviewSolutions

• Endosperm development precedes embryo development, the endosperm of angiospermic plant isA. TriploidB. DiploidC. HaploidD. Tetraploid
• Assertion :- Endosperm increases the success rate of seedling development. Reason :- Endosperm arises from PEC.A. AB. BC. CD. D
• Assertion :- Most zygotes divide only after certain amount of endosperm is formed. Reason :- This is an adaptation to provide assured nutrition to the developing embryo.A. AB. BC. CD. D
• Primary endosperm nucleus is formed by the fusion ofA. Fusionof two polarnucleiand one malegameteB. Fusionof one swergid and two polar nucleiC. Fusion of two antipodal and one male gameteD. Fusionof one male gamete one synergids and one antipodal cell
• A typical angiosperm embryosac at maturity is :-A. 7 celled = 8 nucleatedB. 9celled- 7 nucleatedC. 3 celled - 3 nucleatedD. 2celled- 2 nucleated
• Assertion :- Seed bearing plants like angiosperms show wide geographic distribution. Reason :- Seeds have better adaptive strategies for dispersalA. AB. BC. CD. D
• Assertion :- ln Angiosperms, sexual reproduction takes place through the flower. Reason : All the parts of the flower are modification of stemA. AB. BC. CD. D
• Transfer of pollen grains from the another to the stigma of another flower of the same plant is calledA. XenogamyB. AutogamyC. GeitonogamyD. Allogamy
• Assertion :- Non synchronised pollen release and stigma receptivity is of evolutionary significance. Reason :- It prevent self pollination and promote more genetic variabilityA. AB. BC. CD. D
• How many meiotic divisions are necessary for formation of 100 functional megaspores:-A. 25B. 50C. 100D. 200