The weightage for the Bio chapter 3, Human Reproduction, in the board exam is 12 marks. Each definitions and concept is followed by the solved and unsolved questions. You can also find the various ...

We have two contradictory expectations about human biology and behaviour. Given our primate and mammalian ancestry, we must be pretty similar to chimps, monkeys, and even rats. But given our big ...

For a long time, having children has been a young person’s game. Although ancient records are sparse, researchers estimate that, for most of human history, women most typically conceived their first ...

An Indian-origin research geneticist, who has written a celebration of all the eccentric creatures like the whiptail lizard capable of reproducing by themselves without sexual contact, has claimed ...

Most animals, including humans, carry an internal lunar clock, tuned to the 29.5-day rhythm of the Moon. It guides sleep, reproduction and migration of many species. But in the age of artificial light ...