What is menarch?

What is hymen? What are the functions of hymen?

A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both events.

What is hibernation? What is the significance?

What is cancer? What are its causes ? What are methods ot detect cancers?

What is gene therapy? What is humulin?

What is kinetochore? What is its function?

What is a gene? What is the nature of gene?