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Tag: Heredity and Evolution

Sex Determination

Class 10 Biology Notes
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A study found that children with light coloured eyes are likely to have parents with light coloured eyes. On this basis, can we say anything about whether the light eye colour trait is dominant or recessive ? Why or why not ?

Class 10 Biology
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 In evolutionary terms, we have more in common with : (a) a Chinese school-boy (b) a chimpanzee (c) a spider (d) a bacterium

Class 10 Biology
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An example of homologous organs is : (a) our arm and a dog’s fore-leg (b) our teeth and an elephant’s tusks (c) potato and runners of grass (d) all of the above.

Class 10 Biology
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A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as: (a) TTWW (b) TTww (c) TtWW (d) TtWw

Class 10 Biology
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In evolutionary terms, can we say which among bacteria, spiders, fish and chimpanzees have a ‘better’ body design ? Why or why not ?

Class 10 Biology
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Heredity: Inherited traits, Mendel’s Contribution, and Trait expression.

Class 10 Biology Notes
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Variation and Heredity

Class 10 Biology Notes
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Heredity and Evolution

Class 10 Biology Notes
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Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species ?

Class 10 Biology
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What are fossils ? What do they tell us about the process of evolution ?

Class 10 Biology
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Can the wing of a butterfly and the wing of a bat be considered homologous organs ? Why or why not ?

Class 10 Biology
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