NEET-UG importance
Basic genetic diseases as inheritance examples is a useful scoring area because questions often test direct NCERT wording, process sequence, and the ability to separate close distractors. Keep the revision tight and practice with explanations after each attempt.
How to practice this topic
Read the NCERT section first, mark definitions and examples, then solve MCQs in short sets. After each wrong answer, rewrite the reason in one line so the concept becomes recallable before a mock test.
Core concepts to revise
- Revise the NCERT definitions first, then solve short concept-check MCQs.
- Mark examples and exceptions because NEET Biology questions often test exact wording.
- Review every wrong option after practice so close distractors become easier to eliminate.
Common NEET traps
- Do not rely on memorized keywords without checking the full statement.
- Separate NCERT-level facts from advanced details that are not needed for NEET-UG.
Example MCQs and explanations
Which single-gene disorder can be induced by environmental factors?
Answer: B. G6PD deficiency (also known as favism)
G6PD deficiency, also known as favism, can be triggered by certain environmental factors such as fava beans or specific medications. The other options are not typically influenced by environmental triggers.
Practice this MCQWhich of the following genetic diseases can be diagnosed through chromosomal analysis?
Answer: D. Wolf-Hirschhorn syndrome
Wolf-Hirschhorn syndrome is a genetic disorder caused by the deletion of a segment on chromosome 4. It can be diagnosed through chromosomal analysis.
Practice this MCQWhich disease is caused due to a deficiency in galactose-1-phosphate uridylyltransferase?
Answer: B. galactosemia
Galactosemia is caused by a deficiency in galactose-1-phosphate uridylyltransferase, leading to the accumulation of toxic metabolites and various symptoms.
Practice this MCQWhich of the following genetic diseases is caused by lysosomal enzyme deficiency?
Answer: C. Mucopolysaccharidosis
Mucopolysaccharidosis is a genetic disorder caused by the deficiency of lysosomal enzymes, leading to the accumulation of mucopolysaccharides in various tissues.
Practice this MCQPhenylketonuria occurs due to the deficiency of phenylalanine hydroxylase leading to
Answer: A. metabolic substrate accumulation
Phenylketonuria is caused by the deficiency of phenylalanine hydroxylase, which leads to the accumulation of phenylalanine as a metabolic substrate.
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