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1. In a typical embryo sac, the number of nuclei and cells are:a) 8 nuclei and 7 cells b) 8 nuclei and 8 cells c) 7 nuclei and 7 cells d) 6 nuclei and 6 cellsDeselect Answer
2. In a typical embryo sac, the antipodal cells are:a) Haploid and located at the chalazal end b) Diploid and located at the micropylar end c) Triploid and located at the chalazal end d) Haploid and located at the micropylar endDeselect Answer
3. The primary endosperm nucleus (PEN) is formed by the fusion of:a) One male gamete and two polar nuclei b) One male gamete and one egg cell c) Two male gametes and one polar nucleus d) One male gamete and one synergidDeselect Answer
4.In angiosperms, various stages of reductional division can best be studied ina) young anthersb) young ovulesc) mature anthersd) endosperm cells.Deselect Answer
5. Pick out the wrong statementa) Histones are rich in Lysine and Arginine b) Histones contain 8 molecules c) Histones carry positive charge in the side chain d) The pH of histones is slightly acidic.Deselect Answer
a) Both assertion and reason are true and reason is the correct explanation of assertion.b) Both assertion and reason are true but reason is not the correct explanation of assertion.c) Assertion is true but reason is false.d) Assertion is false but reason is true