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Biology — Heredity
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तमसो मा ज्योतिर्गमय · Est. 2025
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Test Yourself: 50 Heredity MCQs for Class 10 (With Answers)
Test Yourself: 50 Heredity MCQs for Class 10 (With Answers) — Complete Notes & Solutions · academia-aeternum.com
Mastering the concept of heredity is crucial in understanding how traits are passed from one generation to another. This collection of MCQs from NCERT Class 10 Science Chapter 8 "Heredity" is designed to reinforce key principles, formulas, applications, and exam-focused questions rooted in Mendelian genetics, gene action, chromosome structure, and genetic variation. These questions sharpen analytical skills, support board exam preparation, and boost confidence in tackling genetics problems,…
🎓 Class 10
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🏆 CBSE · JEE
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Frequently Asked Questions
Heredity is the process through which traits or characteristics are passed from parents to offspring via genes.
A gene is a segment of DNA on a chromosome that codes for a specific trait or protein.
A trait is any observable characteristic or feature of an organism, such as eye color or blood type, determined by genes.
Chromosomes are thread-like structures made of DNA and proteins, present in the nucleus of cells, that carry genetic information.
Genotype is the genetic makeup of an organism, representing the combination of alleles inherited from parents.
Phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype and environment.
Alleles are different forms of a gene that control the same trait and may result in variations within a population.
Inherited traits are passed through genes from parents to offspring; acquired traits result from environmental influences and are not inherited.
It states that two alleles for each trait separate during gamete formation, so each gamete gets only one allele.
Mendel’s law of independent assortment states that genes for different traits assort independently during gamete formation.
A monohybrid cross involves one trait, crossing two organisms that differ in that single trait, e.g., tall vs short pea plants.
A dihybrid cross studies two traits simultaneously, e.g., seed shape and color in pea plants.
A dominant trait expresses itself in the presence of another allele, while a recessive trait is masked when a dominant allele is present.
Tall stem in pea plants is a dominant trait over short stem.
The typical phenotype ratio in F2 generation of a monohybrid cross is 3:1 (three dominant : one recessive).