Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
According to the context, what was India's population approximately at the time of its independence?
The text states: 'Our population which was approximately 350 million at the time of our independence reached close to the billion mark by 2000...'
What is the consequence of an 'alarming growth rate' of population, as described in the context?
The text explains: 'Such an alarming growth rate could lead to an absolute scarcity of even the basic requirements, i.e., food, shelter and clothing, in spite of significant progress made in those areas.'
What is considered the 'most important step' to overcome the problem of rapid population growth according to the provided text?
The text states: 'The most important step to overcome this problem is to motivate smaller families by using various contraceptive methods.'
Which of the following properties is characteristic of normal cells but is lost in cancerous cells?
Normal cells show a property called contact inhibition, by virtue of which contact with other cells inhibits their uncontrolled growth. Cancer cells appear to have lost this property, leading to uncontrolled division.
Metastasis, the most feared property of malignant tumors, refers to:
Cells sloughed from malignant tumors reach distant sites through blood, and wherever they get lodged in the body, they start a new tumor there. This property is called metastasis and is the most feared property of malignant tumors.
Which of the following is NOT considered a carcinogen that can induce the transformation of normal cells into cancerous neoplastic cells?
Ionising radiations like X-rays and gamma rays, and non-ionising radiations like UV cause DNA damage leading to neoplastic transformation. Chemical carcinogens in tobacco smoke are also identified. Alpha-interferon, however, is a biological response modifier used in cancer treatment to activate the immune system.
Cellular oncogenes (c-onc) or proto-oncogenes are genes found in normal cells that:
Several genes called cellular oncogenes (c-onc) or proto-oncogenes have been identified in normal cells which, when activated under certain conditions, could lead to oncogenic transformation of the cells.
Which diagnostic technique uses strong magnetic fields and non-ionising radiations to accurately detect pathological and physiological changes in living tissue?
MRI uses strong magnetic fields and non-ionising radiations to accurately detect pathological and physiological changes in the living tissue.
A patient undergoing cancer treatment experiences side effects such as hair loss and anemia. This is characteristic of which common cancer treatment approach?
Several chemotherapeutic drugs are used to kill cancerous cells. Majority of these drugs have side effects like hair loss, anemia, etc.
Biological response modifiers like alpha-interferon are administered to cancer patients primarily to:
Patients are given substances called biological response modifiers such as alpha-interferon which activates their immune system and helps in destroying the tumor.
Ready to ace NEET?
Free access · No credit card required
Yes. You can attempt every Zoology question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.
No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.
The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.