Botany - Sexual Reproduction in Flowering Plants Question with Solution | TestHub

When pollen grains of the flower of one plant is transferred to the stigma of a flower on the other plant of same or different species is called cross-pollination. Autogamy, in contrast, is self-fertilization, e.g. fertilization occurring on a flower when the ovum is fertilized with its own pollen (as in self-pollination). Allogamy is advantageous over autogamy with regard to preventing inbreeding depression, which is the reduced biological fitness in a particular population due to inbreeding. Allogamy is more efficient in encouraging the generation of new genotypes than autogamy.