Human Health and Diseases. — Bio Zoology STD 12 — Question

In some parts of South India, a traditional drink called pathfinder is obtained from fermenting sap of palms and coconut trees. A common source is tapping of unopened spadices of coconut. It is a refreshing drink, which on boiling produces jaggery or palm sugar. When pathaneer is left undisturbed for few hours it gets fermented to form toddy with the help of naturally occurring yeast, to form a beverage that contains 4 percent alcohol. After 24 hours toddy becomes unpalatable and is used for the production of vinegar.

How radioactive waste are managed? Suggest few methods of disposal of radioactive waste.

Extinction of Dodo bird led to the danger of Calvaria tree – Justify,

How gene therapy is done to treat ADA deficiency?

How macro molecules like DNA and RNA play their crucial role in evolutionary history?

Lactational amenorrhoea – Comment.

Under threat or attack, the garden lizard loses a part of its tail which trembles and avert the attention of predators, so that the lizard escapes later the tail regrown for the lizard. The same phenomenon can also be noticed in organisms like starfish etc. What do you call this phenomenon? Define it.

Name the gaseous mixture used in Urey – Miller’s experiment. Which type of physical force is applied to generate amino acids?

Define AQI. What will be the air quality if AQI is between 0-50?

Define lactation and explain its hormonal background.