Heredity: Class 10 Science (विज्ञान) (Bihar Board) important questions and practice
Heredity is chapter 8 of 13 in Bihar Board Class 10 Science (विज्ञान). Below are the topics the paper draws from, the question types that come up again and again, and a free practice test on this chapter alone.
Topics in this chapter
- Accumulation of variation during reproduction
- Mendel's experiments: monohybrid and dihybrid crosses
- Dominant and recessive traits, 3:1 and 9:3:3:1 ratios
- Sex determination in human beings
- Traits: inherited versus acquired
- How traits are expressed (genes and proteins)
What examiners usually ask
- Explain with a cross how Mendel showed that traits are inherited independently (dihybrid cross)
- How is the sex of a child determined in human beings? Explain with a diagram
- A pea plant with round seeds (RR) is crossed with one having wrinkled seeds (rr); what will be the F1 and F2 results?
Exam tip
Draw the Punnett square for both the monohybrid and dihybrid crosses and write the phenotypic ratios clearly; the sex determination flowchart (XX, XY) is also a regular 3-mark question.
Heredity on other boards and exams
Frequently asked questions
What are the important questions from Heredity for Bihar Board Class 10?
The question types listed above repeat most often in Bihar Board Class 10 Science (विज्ञान) papers for this chapter. Practise them with the chapter test and then attempt them inside a full previous-year paper under time.
Is Heredity in the Bihar Board Class 10 Science (विज्ञान) syllabus?
Yes. Heredity is part of the current Bihar Board Class 10 Science (विज्ञान) syllabus, as listed on this site from the prescribed textbook.
Can I practise Heredity MCQs in Hindi?
Yes. The chapter test and explanations are available in Hindi and English, with an AI doubt solver for any question.