NEET Genetics Quiz
Practice on Mendelian inheritance and its deviations, linkage, sex determination, the molecular basis of inheritance and genetic disorders - with worked reasoning on every ratio.
Skill map
Levels in this neet genetics quiz
Every question is generated fresh by AI and calibrated to your level - clear a level and the next one gets harder. Miss one and the AI tutor explains Genetics until it sticks, then aims a follow-up at the gap. Want to grind one level? Start the quiz and type that sub-topic as your own.
Exam focus
How Genetics is asked
One of the more numerically demanding units in NEET Biology and a consistent presence in the paper. NTA publishes no chapter-wise weightage, so treat online figures as estimates - but the pattern is stable: a mix of ratio calculations, pedigree interpretation and direct recall from the molecular chapters.
Cheat sheet
Genetics formulas worth memorising
| Quantity | Formula |
|---|---|
| Monohybrid ratio | 3 : 1 phenotypic, 1 : 2 : 1 genotypic |
| Dihybrid ratio | 9 : 3 : 3 : 1 |
| Test cross | cross with homozygous recessive |
| Incomplete dominance | 1 : 2 : 1 phenotypic = genotypic |
| Hardy-Weinberg | p² + 2pq + q² = 1, p + q = 1 |
| Gamete types | 2ⁿ for n heterozygous gene pairs |
Marks lost here
Common mistakes in Genetics
- Confusing carrier frequency with affected frequency in Hardy-Weinberg problems. q² is the homozygous recessive (affected) proportion, while 2pq is the carrier proportion - and questions often ask for the one you did not calculate.
- Assuming a 9:3:3:1 ratio always applies to a dihybrid cross. It requires independent assortment; linked genes give a distorted ratio, which is precisely how linkage is detected.
- Reversing dominance in incomplete dominance and codominance. Incomplete dominance blends the phenotypes, as in pink snapdragons, while codominance expresses both fully, as in AB blood group.
- Getting haemophilia and colour blindness inheritance wrong. Both are X-linked recessive, so affected males are far more common and an affected male inherits the allele from his mother, never his father.
- Treating the genotypic and phenotypic ratios as interchangeable. They coincide only when dominance is incomplete or codominant, not in standard Mendelian dominance.
Game rules
How a round works
- 01Spawn
Press play - the AI generates Genetics questions in seconds.
- 02Level up
Answer to earn XP and build a streak. Difficulty adapts to your accuracy and speed.
- 03Learn or lose
Every answer - right or wrong - gets an AI tutor explanation. Wrong answers respawn as follow-ups.
Leaderboard
Genetics high scores
Next challenges
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Player's guide
NEET Genetics Quiz - FAQs
Why do more males than females show X-linked recessive disorders?
Because males have only one X chromosome, so a single recessive allele is expressed with nothing to mask it. A female needs the allele on both X chromosomes to be affected, which is far less likely, so she is usually a carrier instead.
How do I approach genetics numericals quickly?
Write the parental genotypes first, then determine the gametes, and only then build the cross. Most errors come from starting with the answer ratio and working backwards. For Hardy-Weinberg, always start from q² because it is the value the question usually gives you.
Is the neet genetics quiz free?
Yes - completely free, with no sign-up required. Type a topic, press start, and the AI generates an adaptive Genetics quiz with an explanation for every answer.
Can teachers host this neet genetics quiz live for a class?
Yes - create a free teacher account, host a live room on "Genetics", and students join with a 6-character code at quff.in/join. No student accounts needed.
From the blog
Genetics guides & reading
NEET Genetics: 30 Practice Questions with Answers
Thirty solved Genetics questions, including the ratio calculations and the Hardy-Weinberg reasoning that separate carrier from affected.
Exam PrepNEET Human Physiology: 30 Practice Questions with Answers
Thirty solved Human Physiology questions across the largest unit in NEET Biology, with the cross-system links the exam actually tests.
Exam PrepNEET Ecology: 30 Practice Questions with Answers
Thirty solved Ecology questions. The best return per study hour in NEET Biology - largely factual and independent of every other unit.
More exam prep quizzes
Ready, player?
Six adaptive Genetics questions. About two minutes. Climb the podium.