Human Reproduction — BIOLOGY STD 12 Science — Question

Name the three layers of uterine wall.

Reproductive and Child Healthcare (RCH) programmes are currently in operation. One of the major tasks of these programmes is to create awareness amongst people about the wide range of reproduction related aspects. As this is important and essential for building a reproductively healthy society.

1. “Providing sex education in schools is one of the ways to meet this goal.” Give four points in support of your opinion regarding this statement.
2. List any two ‘indicators’ that indicate a reproductively healthy society.

Explain how surrogacy is helpful in case of an infertile woman.

While creation and presence of variation are directionless, natural selection is directional as it is in the context of adaptation. Comment.

According to Darwinian theory, the rate of appearance of new forms is linked to their life cycles. Explain.

Trace the life-cycle of malarial parasite in the human body when bitten by an infected female Anopheles.

State the significance of pollination. List any four differences between wind pollinated and animal pollinated flowers.

How is PCR technique beneficial in biotechnology? How are the developed countries related to biopiracy cases? Explain with an example.