Class 12 VBQs Biology Principles of Inheritance and Variation

Short Answer Type Questions Question. Explain the laws that Mendel derived from his monohybrid crosses.Answer : Law of Dominance, states that factors that control characters occur in pairs and in dissimilar pair one factor dominates (expresses itself) whereas the other recessive factor does not express in the presence of the dominant one.Law of Segregation, states that during […]

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Class 12 VBQs Biology Human Reproduction

Very Short Answer Type Questions Question. Name the pouch in which the human testes are present. Answer : Scrotum. Question. Name the cells that nourish the germ cells in the testes. Where are these located in the testes ?Answer : Name of cells—Sertoli cells.Location—They are found lining-up the inner surface of seminiferous tubules.  Question. Write the […]

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Class 12 VBQs Biology Sexual Reproduction in Flowering Plants

Very Short Answer Type Questions Question. Explain the process of pollination in Vallisneria.Answer : The female flower reaches the surface of water by long stalk, male flower releases the pollen grains on surface of water, pollen grains are carried by water currents, some of them reach the stigma and achieve pollination.  Question. What is pollen–pistil interaction and how […]

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Class 12 VBQs Biology Reproduction in Organisms

Very Short Answer Type Questions Question. In which two of the following organisms is the fertilization external ?Bony fishes, ferns, frog, birds.Answer : Bony fishes and frogs.  Question. Which of the following statements is true for date palm.(i) It is monoecious producing both staminate and pistillate flowers in the same plant.(ii) It is monoecious producing staminate […]

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VBQs For Class 12 Biology

Chapter 1 Reproduction in Organisms Chapter 2 Sexual Reproduction in Flowering Plants Chapter 3 Human Reproduction Chapter 4 Reproductive Health Chapter 5 Principles of Inheritance and Variation Chapter 6 Molecular Basis of Inheritance Chapter 7 Evolution Chapter 8 Human Health and Diseases Chapter 9 Strategies for Enhancement in Food Production Chapter 10 Microbes in Human […]

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