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प्रश्न
Multiple choice question.
Gene frequency in a population remain constant due to –
विकल्प
Mutation
Migration
Random mating
Non- random mating
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उत्तर
Random mating
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संबंधित प्रश्न
Explain the concept ‘survival of the fittest’.
List three distinguishing features, in tabular form, between acquired traits and the inherited traits.
Give the respective scientific terms used for studying the mechanism by which variations are created and inherited
Some plants occur in one of the two sizes : tall or dwarf. This characteristic is controlled by one pair of genes. Tallness is dominant to dwarfness. Choose suitable letters for this gene pair.
A black mouse mates with a brown mouse, and all the offsprings are black.
(a) Why are no brown offsprings produced?
(b) If two of the black offsprings mate with each other what kind of offspring would you expect and in what proportions? Give reason for your answer.
In what way are analogous organs evidence for evolution?
"Only variations that confer an advantage to an individual organism will survive in a population". Do you agree with this statement? Give reason for your answer.
State the meaning of inherited traits and acquired traits. Which of the two is not passes on the next generation? Explain with the help of an example.
Evolution means ______.
Short answer question.
Give an example of disrruptive selection
