HSC Science कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Improvement of human race by encouraging the healthy persons to marry early and produce large number of children is called ____________.

The ____________ deals with the control of several inherited human diseases especially inborn errors of metabolism.

Comment on the methods of Eugenics.

Why tRNA is called an adapter molecule?

Give an account on the major causes for the extinction of a particular species on earth.

Explain the three level of impact of extinction of species.

Allergy involves ____________.

Anaphylactic shock is due to ____________.

Give an account of population regulation.

The interaction in nature, where one gets to benefit on the expense of other is _________.

Predation and parasitism are which type of interactions?

Competition between species leads to ________.

Match the following and choose the correct combination from the options given below.

The relationship between sucker fish and shark is _________.

Tabulate and analysis of two species population interaction.

Define the following term:

Parasitism

Differentiate between predator and prey.

Spread of cancerous cells to distant sites is termed as ____________.

Differentiate between autoimmune disease and immunodeficiency disease.

HGP is the window for the treatment of various genetic disorders. Justify the statement.