Difference between Asexual Reproduction and Sexual Reproduction
Difference between Asexual reproduction and Sexual reproduction: Asexual reproduction (i) Usually it occurs in the lower type of organisms. (ii) Male and female gametes are…
Biology
Describe the Sexual Reproduction of a Flowering Plant
Sexual reproduction of a Flowering Plant: (i) Flowering plants are the representatives of diploid sporophytic generations. (ii) Gemetophytic and sporophytic generations repeat alternately through sexual…
Define and Discuss on Parthenogenesis
The process how an embryo is formed from a gamete without it being fertilized is called parthenogenesis. e.g. In plant – Spirogyra, Mucor, Fern etc. In…
What do you mean by Double Fertilization?
The kind of fertilization observed in most of the angiospermic plants where one male gamete (n) fertilizes female gamete (n) and the other male gamete…
What are the changes that occur to the Ovule after Fertilization?
Fertilization is the fusion of the male gamete and female gamete to form a zygote in plants. After fertilization, the zygote divides to form an…
Describe the Formation of a Female Gamete (n) from a Megaspore
By the following ways a female gamete is formed through the formation of a female spore and subsequently a female gamete inside the ovule is…
Describe Formation of Embryo Sac and Production of Female Gamete
Formation of embryo sac and production of egg or female Gamete (1) At first the nucleus of a female spore (n) divides to form two…
What is fertilization? Discuss the Importance of Fertilization
Fertilization is the union of two dissimilar sexual reproductive units called gametes (n). The significance of fertilization: The following are the significances performed due to…
Describe Formation of Male Gametes from a Pollen Spore
Formation of male gametes from a pollen spore i) The nucleus of a pollen spore products two nuclei by mitosis. ii) The bigger nucleus is…
Describe the Formation and Structure of a Pollen Grain
Pollen grains are formed from the anther of a stamen of a flowering plant. There are pollen sacs inside the anther. At the adult stage,…
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