Chapter : 6. Reproduction
Sexual Reproduction
Sexual Reproduction Sexual reproduction is a mode of multiplication in which the young ones are produced through the process of formation & fusion of gametes.
Significance of sexual reproduction : Variation : Due to reshuffling of chromosomes and crossing over, sexual reproduction brings about variations in almost all characters so that no two individuals are similar.
Vigour and Vitality : It maintains the vigour and vitality of the individuals.
Uniformity of Population : Due to the flow of genes amongst individuals during sexual reproduction, the uniformity of population is maintained where there is a broad resemblance of all the individuals with one another.
Evolution : Genetic changes brought about by sexual reproduction paly an important part in evolution of new forms.
Sexual reproduction in flowering plants : A flower has following parts.
Sepals : Sepals are green outermost leaf-like floral organs which protect the flower in the bud stage. In the mature stage they provide support to other floral organs.
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