In angiosperms, microsporogenesis and megasporogenesis
1. Occur in anther
2. Form gametes without further divisions
3. Involve meiosis
4. Occur in ovule
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMale gametophyte in angiosperms produces
1. Two sperms and a vegetative cell
2. Single sperm and a vegetative cell
3. Single sperm and two vegetative cell
4. Three sperms
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMale gametophyte with least number of cells is present in :
1. Pteris
2. Funaria
3. Lilium
4. Pinus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is :
1. Cuticle
2. Sporopollenin
3. Lignin
4. Cellulose
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. Cork
2. Wood fibre
3. Pollen exine
4. Leaf cuticle
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology