Heredity and Evolution — Important Questions
Maharashtra Board · Class 10 · Science
43 important questions from Heredity and Evolution for Maharashtra Board Class 10 Science, with answers. Written for the board exams 2027.
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Important Questions from Heredity and Evolution
Which of the following are components of DNA? (Select all correct answers)
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Adenine, Thymine, Guanine, Cytosine
DNA contains four nitrogenous bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). Uracil is found in RNA, not DNA.
Evolution is a very slow process that takes place over:
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Long duration
Evolution is a gradual change occurring in living organisms over a very long duration, involving thousands or millions of years.
Which of the following are evidences of evolution? (Select all correct answers)
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Morphological evidences, Fossils, Vestigial organs, Connecting links, Embryological evidences
All these are valid evidences of evolution: morphological similarities, fossil records, vestigial organs, connecting links between species, and embryological similarities.
Vestigial organs are:
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Degenerated or useless organs
Vestigial organs are degenerated or underdeveloped useless organs that were functional in ancestors but became useless due to evolutionary changes.
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