Is this Class 10 Science worksheet on Heredity free?

Yes — it is completely free, with no login and no ads. You can print it or save it as a PDF, and generate unlimited variations.

Does the Heredity worksheet come with answers?

Yes. Every worksheet has a separate answer key with the correct answers, short explanations and marks, so it is ready for marking.

Can I choose how many questions and which types?

Yes. Open the generator for this chapter and set how many MCQs, short, long and HOTS questions you want; totals and marks update live, and you can swap any single question.

Which board and class is this for?

This worksheet is aligned to CBSE Class 10 Science, chapter “Heredity”.

🧾 CBSE · Class 10

Class 10 Science: Heredity Worksheet (with Answers)

A free, print-ready worksheet on Heredity for CBSE Class 10 Science, with a matching answer key. Use the sample below, or build your own with the exact mix of questions you need — no login, no ads.

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Sample worksheet

7 of 18 questions from this chapter. Generate your own for the full set, more variations, and a clean print layout.

1. The scientist who founded the study of heredity using pea plants was:
- (a) Pasteur
- (b) Lamarck
- (c) Mendel
- (d) Darwin
2. A trait that appears with only one copy of its gene is:
- (a) recessive
- (b) dominant
- (c) mutant
- (d) hidden
3. The F₂ phenotype ratio of a monohybrid cross is:
- (a) 9 : 3 : 3 : 1
- (b) 1 : 2 : 1
- (c) 3 : 1
- (d) 1 : 1
4. The F₂ phenotype ratio of a dihybrid cross is:
- (a) 1 : 1
- (b) 9 : 3 : 3 : 1
- (c) 3 : 1
- (d) 1 : 2 : 1
5. What is the difference between genotype and phenotype?
6. Which chromosome does a sperm need to carry to produce a male child?
7. Explain a monohybrid cross between a tall (TT) and a short (tt) pea plant up to the F₂ generation.

View answers

1. (c) Mendel — Gregor Mendel is called the father of genetics.
2. (b) dominant — A dominant trait shows up even with a single copy.
3. (c) 3 : 1 — Monohybrid F₂ phenotype ratio is 3 : 1.
4. (b) 9 : 3 : 3 : 1 — Dihybrid F₂ ratio is 9 : 3 : 3 : 1.
5. Genotype is the genetic make-up (e.g. Tt); phenotype is the visible trait (e.g. tall).
6. The Y chromosome.
7. F₁: TT × tt gives all Tt — tall plants (T is dominant). F₂: crossing Tt × Tt gives TT, Tt, Tt, tt → genotype ratio 1 : 2 : 1 and phenotype ratio 3 tall : 1 short. This shows that the recessive (short) trait, hidden in F₁, reappears in F₂.

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FAQ

Is this Class 10 Science worksheet on Heredity free?: Yes — it is completely free, with no login and no ads. You can print it or save it as a PDF, and generate unlimited variations.
Does the Heredity worksheet come with answers?: Yes. Every worksheet has a separate answer key with the correct answers, short explanations and marks, so it is ready for marking.
Can I choose how many questions and which types?: Yes. Open the generator for this chapter and set how many MCQs, short, long and HOTS questions you want; totals and marks update live, and you can swap any single question.
Which board and class is this for?: This worksheet is aligned to CBSE Class 10 Science, chapter “Heredity”.