21. Which special method of reproduction is found on Nephrolepis ?
22. Which of the following is not a natural method of vegetative reproduction ?
23. How many chromosomes are there in meiocyte of Apple ?
24. In which animal conjugation occurs as a sexual reproduction ?
25. Devlopment of zygote taking place outside the body is called ?
26. By which asexual reproductive method do Dictyota, Fucus and Yeast reproduces ?
27. Which algae reproduce by fragmentation ?
A. Ulothrix, Oedogonium
B. Spirogyra, Zygnema
C. Sargasum, Oscillatoria
D. Both a and b
Answer : Option B
28. In which plants motile ciliated spores are produced during spore formation ?
29. What divides first during the method of fission ?
30. In Amoeba, the plane of cytoplasmic division is in which direction ?