by abhishek | Aug 30, 2020 | Sexual Reproduction
Secondary sex organsThese are those organs of sexual reproductive system which do not produce gametes. For example, penis, urethra, seminal vesicles, uterus, fallopian tubes and vagina. Secondary or Accessory sex charactersThese are those specific characters or...
by abhishek | Aug 30, 2020 | Sexual Reproduction
PubertyPuberty may be defined as that age at which the reproductive system of a boy or a girl becomes functional and production of sex hormones gets started. In other words puberty is that age at which a boy or a girl becomes capable to reproduce. The onset of puberty...
by abhishek | Aug 29, 2020 | Sexual Reproduction
It is the most common method of reproduction in higher animals. It involves the formation of male gamete from the male parent and female gamete from the female parent. In animals the male reproductive organ which produces the male gametes is testes, while the female...
by abhishek | Aug 29, 2020 | Sexual Reproduction
ParthenogenesisParthenogenesis may be defined as the development of a new organism from an unfertilized female gamete. The process of parthenogenesis is found in insects such as aphids and wasps. In aphids female offsprings are produced from their unfertilized eggs by...
by abhishek | Aug 29, 2020 | Sexual Reproduction
Unisexual organismsThe organisms in which male and female reproductive system are present in different individuals are called unisexual organisms. We can also say that the organisms in which male and female sexes are separate are called unisexual organisms. For...
by abhishek | Aug 29, 2020 | Sexual Reproduction
FertilizationThe second step in the formation of seeds is fertilization. Fertilization may be defined as the fusion of male gametes (pollens) with the female gametes (ovum) to form zygote, during the sexual reproduction. We have already discussed that the formation of...
Recent Comments