Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
An antigen is defined as a chemical that:
The definition provided in the text states: 'ABO grouping is based on the presence or absence of two surface antigens (chemicals that can induce immune response) on the RBCs namely A and B.'
If a person has AB blood group, they can donate blood to individuals with which blood group(s)?
According to Table 15.1, under 'Donor's Group' for blood group AB, the only option listed is 'AB'. This means a person with blood group AB can only donate blood to another person with blood group AB.
Myasthenia gravis is an autoimmune disorder that primarily affects which part of the neuromuscular system?
The NCERT text states: 'Myasthenia gravis: Auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle.'
Which of the following disorders is characterized by progressive degeneration of skeletal muscle and is mostly due to a genetic defect?
According to the NCERT context, 'Muscular dystrophy: Progressive degeneration of skeletal muscle mostly due to genetic disorder.'
A patient presents with rapid spasms and wild contractions in their muscles. A potential underlying cause, as per the provided information, could be low levels of what in the body fluid?
The NCERT text states: 'Tetany: Rapid spasms (wild contractions) in muscle due to low Ca++ in body fluid.'
Osteoporosis is an age-related disorder. What are its defining characteristics?
The provided text defines: 'Osteoporosis: Age-related disorder characterised by decreased bone mass and increased chances of fractures.'
In females, decreased levels of which hormone are a common cause of osteoporosis?
The NCERT text mentions: 'Decreased levels of estrogen is a common cause [of osteoporosis].'
Gout is a disorder characterized by the inflammation of joints. What substance accumulates in the joints to cause this inflammation?
The NCERT text clearly states: 'Gout: Inflammation of joints due to accumulation of uric acid crystals.'
Which of the following disorders involves inflammation of joints?
The NCERT definition for arthritis is 'Arthritis: Inflammation of joints.'
A disorder causing fatigue, weakening, and paralysis of skeletal muscle due to an autoimmune attack on the neuromuscular junction is:
The NCERT text defines Myasthenia gravis as an 'Auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle.'
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.