REPRODUCTION

1. Single celled organisms (bacteria, amoeba and paramecium) reproduce by ________.

2. Reproduction through _________ occurs in yeast. _________ occurs in spirogyra, lichens.

3. We get seedless fruits due to ___________ (shift from sexual to asexual reproduction).

4. Vegetative reproduction through leaves takes place in ___________.

5. Reproduction in fungi (rhizopus, mucor) occurs through __________.

6. Spores containing leaves in fern are called as ___________.

7. External fertilization is common in _________ animals (fishes and amphibians).

8. Epididymis (sperms are stored temporarily) is formed by ______________.

9. The development of male reproductive organs regulated by ____________.

10. The release of ovum by rupturing of graffian follicle is called __________.

11. From the 3rd month of pregnancy the embryo is called as _________.

12. The secretion of mammary glands after delivery of baby is called as __________.

13. Bottle guard and papaya are examples for __________ flowers.

14. No. of cells present in pollen tube are ________.

15. ___________ (secondary cell) in embryo sac contains two polar nuclei.

16. The second fertilization in plants gives rise to __________.

17. Mitosis was discovered by ____________ in 1879.

18. The structure of deoxy ribonucleic acid (DNA) is discovered by _______________.

19. DNA synthesis takes place in _________ (“S” stage).

20. Johnson and potu Rao revealed the structure of _____________.

21. Theodor Boveri confirmed the _____________ in 1904.

22. Cells that contain only one set of chromosomes are called _______________.

23. AIDS (Acquired immuno deficiency syndrome) is caused by _______.

24. Prevention of pregnancy in women is called _____________.

25. Birth control surgery in males called ___________ and in females called _____________.