Heredity — Important Questions
CBSE · Class 10 · Science
59 important questions from Heredity for CBSE Class 10 Science, with answers. Written for the board exams 2027. Part of the CBSE Class 10 Science syllabus.
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Important Questions from Heredity
In Mendel's pea plant experiments, what happened in the first generation (F1) when crossing tall and short plants?
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All plants were tall
In the F1 generation, only the dominant trait (tallness) was expressed.
What determines the sex of a child in human beings?
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Father's chromosomes
The father's X or Y chromosome determines the child's sex - X for female, Y for male.
What is a gene?
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A section of DNA providing protein information
A gene is a specific segment of DNA that contains instructions for making a particular protein.
How many chromosome pairs do humans typically have?
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22 pairs
Humans have 22 paired chromosomes plus the sex chromosomes, totaling 22 pairs of autosomes.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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