Exchange of genetic material takes place in
(a) vegetative reproduction
(b) asexual reproduction
(c) sexual reproduction
(d) budding
Describe sexually transmitted diseases and mention the ways to prevent them.
Reproduction is essentially a phenomenon that is not for survival of an individual but for the stability of a species. Justify.
How does fertilisation take place? Fertilisation occurs once in a month. Comment.
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
Distinguish between a gamete and zygote. Explain their roles in sexual reproduction.
Distinguish between pollination and fertilisation. Mention the site and product of fertilisation in a flower.
Draw a neat, labelled diagram of a pistil showing pollen tube growth and its entry into the ovule.
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