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Class 10 Mcq

Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceWhy does natural selection depend not merely on variation but on inherited variation?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceWhy can offspring of mice still be born with tails even after tails are cut for many generations?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceIf a person strengthens muscles through lifelong exercise, why will this change not pass directly to offspring?Class 10World of LivingHeredity and EvolutionLevel 19Medium ScienceWhy is the usual non-inheritance of acquired traits important for understanding evolution?Class 10Heredity and EvolutionEvolution and speciationLevel 19Hard ScienceIf a sperm carrying the Y chromosome takes part in fertilisation, what will be the sex-chromosome combination of the child?Class 10Heredity and EvolutionSex determinationLevel 19Medium ScienceIf a female sex-chromosome combination forms after fertilisation, which type of sperm caused it?Class 10Heredity and EvolutionSex determinationLevel 19Medium ScienceBlaming the mother for the birth of a girl child goes against which scientific fact?Class 10Heredity and EvolutionSex determinationLevel 19Medium ScienceWhy is the father’s contribution considered decisive for sex determination in humans compared with the mother’s?Class 10Heredity and EvolutionSex determinationLevel 19Medium ScienceWhat is the main meaning of the 9:3:3:1 result in a dihybrid cross?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceThe appearance of new combinations in a dihybrid cross supports which principle?Class 10Heredity and EvolutionInheritanceLevel 19Hard ScienceWhat deeper idea is shown by the 3:1 ratio in the second generation of a monohybrid cross?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceUnder which condition will a recessive trait appear externally?Class 10World of LivingHeredity and EvolutionLevel 19Medium ScienceIf a plant has one dominant and one recessive form for height, why will it appear tall?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceThe reappearance of the hidden dwarf trait in the second generation disproves which idea?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceIn a cross between pure tall and pure dwarf plants, all first-generation plants appear tall. What does this prove?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceWhat was the greatest usefulness of pea plants in Mendel's experiments?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceIf human gametes had the same chromosome number as body cells, what problem would occur in every generation?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceWhy is having half the chromosome number in gametes necessary for genetic stability?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceWhy is it incomplete to consider a gene merely as the name of a trait?Class 10World of LivingHeredity and EvolutionLevel 19Hard ScienceIf an offspring shows both similarity to and difference from its parents, what is the most correct reason?Class 10World of LivingHeredity and EvolutionLevel 19Hard