Across
- 1. Contraceptive device that prevents implantation without affecting hormone production.
- 7. Tiny reproductive units capable of surviving harsh environmental conditions due to their protective covering.
- 9. Reproductive strategy where a new organism develops as an external outgrowth before detaching.
- 14. Structure that performs two functions—producing female gametes and supporting seed formation after fertilisation.
- 19. Process responsible for generating genetic variation among offspring.
- 20. Plant structure whose fate changes completely after successful fertilisation.
- 21. Process that begins only when environmental conditions become favourable despite the seed remaining alive for long periods.
- 22. Site where interruption would prevent fertilisation but not ovulation.
- 23. Ability that depends more on specialised cells than merely cutting an organism into pieces.
- 24. Organ that requires a lower temperature than normal body temperature for efficient functioning.
- 25. First diploid cell formed immediately after the union of male and female gametes.
- 28. Essential event that must occur before fertilisation in flowering plants but does not involve fusion of gametes.
- 29. Cell division in which one parent produces two genetically identical individuals under favourable conditions.
Down
- 2. A microscopic structure that transports male gametes without requiring water in flowering plants.
- 3. Organ that provides mechanical protection as well as nourishment to the developing embryo.
- 4. Reproductive process possible only in organisms with relatively simple body organisation.
- 5. Developmental phase marked by hormonal changes that make reproduction biologically possible.
- 6. Mode of reproduction that produces genetically identical offspring without gamete formation.
- 8. Biological process essential for continuity of a species but not for the survival of an individual.
- 10. Method adopted by Plasmodium to survive and multiply inside its host.
- 11. Tube whose blockage forms the basis of a permanent male contraceptive surgery.
- 12. Floral part specially adapted to maximise the chances of receiving pollen grains.
- 13. Physiological process that indicates the shedding of tissue prepared for a pregnancy that did not occur.
- 15. Human gamete that contributes almost all the cytoplasm to the future embryo.
- 16. Temporary organ that connects two genetically different individuals without mixing their blood directly.
- 17. Biological event that restores the diploid chromosome number.
- 18. Contraceptive method that simultaneously prevents fertilisation and reduces transmission of sexually transmitted infections.
- 19. Highly specialised cell designed to maximise mobility rather than nutrient storage.
- 26. Floral structure whose failure directly prevents seed formation even if all female parts remain functional.
- 27. Developmental stage that undergoes repeated mitotic divisions before becoming a foetus.