Consider the following statements with respect to pollen grains (a) Exine is thin, continuous layer made up of cellulose and pectin (b) Hard outer layer called exine is made of sporopollenin (c) Sporopollenin is present in germ pores (d) Exine exhibits a fascinating array of patterns and designs. Of the above statementsA. a and b alone are correctB. a and c alone are correctC. b and d alone are correctD. b and c alone are correct.

Consider the following statements with respect to pollen grains (a) Ex

1.	Consider the following statements with respect to pollen grains (a) Exine is thin, continuous layer made up of cellulose and pectin (b) Hard outer layer called exine is made of sporopollenin (c) Sporopollenin is present in germ pores (d) Exine exhibits a fascinating array of patterns and designs. Of the above statementsA. a and b alone are correctB. a and c alone are correctC. b and d alone are correctD. b and c alone are correct.
Answer» Correct Answer - C

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Pollen tube cytoplasm is like any other living cell in showingA. CalloseB. Large vecuolesC. Cytoplasmic streamingD. Mucilage vesicles.
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A group of specialised nucellar cells between embryo sac and micropyle isA. MetastaseB. MesostaseC. EpistaseD. Hypostase.
Group of specialized thickened nucellar cells between embryo sac and chalaza isA. HypostaseB. EpistaseC. TapetumD. Endothelium.
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Which of the following is correct chronological order of the division taking place through an apical or embryo cell to a sixteen cell stageA. Vertical division______ Transverse division ____ Division at right angles to both thhe privious divisions____ Periclinal divisionB. Vertical division___ Vertical division at right angles to the first division___Division at right angles to both the privious divisions____ Periclinal divisionsC. Vertical division ____ Transverse division ____ Periclinal divisionD. Vertical division___ Vertical division at right angles to the first division___ at right angles to the first division___ Transverse division___ Periclinal division.
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