Zoology MCQs for NEET — Practice Questions with Answers

The NCERT lists three key factors affecting health: '(i) genetic disorders – deficiencies with which a child is born... (ii) infections and (iii) life style including food and water we take, rest and exercise we give to our bodies, habits that we have or lack etc.' Climate change is not mentioned as one of these primary factors in the provided excerpts.

The NCERT states, 'This overall ability of the host to fight the disease-causing organisms, conferred by the immune system is called immunity.'

The NCERT mentions, 'India was amongst the first countries in the world to initiate action plans and programmes at a national level to attain total reproductive health as a social goal. These programmes called 'family planning' were initiated in 1951...'

The NCERT text explicitly states, 'Balanced diet, personal hygiene and regular exercise are very important to maintain good health. Yoga has been practised since time immemorial to achieve physical and mental health.'

The text states, 'The discovery of blood circulation by William Harvey... disproved the 'good humor' hypothesis of health. In later years, biology stated that mind influences, through neural system and endocrine system, our immune system and that our immune system maintains our health.'

The NCERT suggests specific measures: 'This can be achieved by avoiding stagnation of water in and around residential areas, regular cleaning of household coolers, use of mosquito nets, introducing fishes like Gambusia in ponds that feed on mosquito larvae, spraying of insecticides in ditches, drainage areas and swamps, etc.'

The summary states, 'An overall improvement in reproductive health has taken place in our country as indicated by reduced maternal and infant mortality rates, early detection and cure of STIs, assistance to infertile couples, etc.'

The introductory text mentions, 'The discovery of antibiotics, and synthetic plant-derived drugs, anaesthetics have changed medical practice on one hand and human health on the other hand. Life expectancy of human beings have dramatically changed over the years.'

According to the NCERT text, 'If any protein encoding gene is expressed in a heterologous host, it is called a recombinant protein.' This clearly defines what a recombinant protein is in the biotechnological context.

The NCERT text states: 'After having cloned the gene of interest and having optimised the conditions to induce the expression of the target protein, one has to consider producing it on a large scale.' This indicates the immediate next step.