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Who am I? I provide diversity to organ...

Who am I?
I provide diversity to organisms without any adaptations just by changing the frequency of certain genes in a population.

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Genetic drift
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…………………………….. provides diversity without any adaptation.

What is genetic drift ? How genetic drift provides diversity without any adaptation ?

Find mismatched pair. (a) Gene flow - Bound to happen between population of two different species. (b) Genetic drift - Frequency of certain genes in a population changed over generation. (c) Genetical variation - Inherited trait (d) Gene - An informative section of DNA for protein

A prism of refractive index n_(1) & another prism of reactive index n_(2) are stuck together without a gap as shown in the figure.The angle of the prisms are as shown. n_(1)&n_(2) depend on lambda ,the wavelength of light according to n_(1)=1.20+(10.8xx10^(4))/(lambda^(2)) & n_(2)=1.45+(1.80xx10^(4))/(lambda^(2)) where lambda is in nm. (i)Calculate the wavelength lambda_(0) for which rays incident at any angle on the interface BC pass through without bending at that interface. (ii) for light of wavelength lambda_(0) ,find the angle of incidencei on face AC such that the deviation produced by the combination of prism is minimum.

An insurance company selected 2000 drivers at random (i.e., without any preference of one driver over another) in a particular city to find a relationship between age and accidents . The data obtained are given in following table : Find the probabilities of the following events for a driver chosen at random from the city. having no accidents in one year

An insurance company selected 2000 drivers at random (i.e., without any preference of one driver over another) in a particular city to find a relationship between age and accidents. The data obtained is given in the following table: Find the probabilities of the following events for a driver chosen at random from the city: (i) The driver being in the age group 18-29 years and having exactly 3 accidents in one year. (ii) The driver being in the age group of 30-50 years and having one or more accidents in a year. (iii) Having no accidents in the year.

An insurance company selected 2000 drivers at random (i.e., without any preference of one driver over another) in a particular city to find a relationship between age and accidents . The data obtained are given in following table : Find the probabilities of the following events for a driver chosen at random from the city. being 30-50 years of age and having one or more accidents in a year.

An insurance company selected 2000 drivers at random (i.e., without any preference of one driver over another) in a particular city to find a relationship between age and accidents . The data obtained are given in following table : Find the probabilities of the following events for a driver chosen at random from the city. being 18-29 years of age and having exactly 3 accidents in one year.

Who am I ? I am a product of oxygen under the influence of UV radiation and I absorb UV rays.

KUMAR PRAKASHAN-HEREDITY AND EVOLUTION-OBJECTIVE QUESTIONS AND ANSWERS
  1. Which is the befitting statement for the acquired characteristic ? a...

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  2. Which of the following is not an acquired characteristic? a.To learn ...

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  3. For what purpose is the Carbon Dating system used?

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  4. Hybridization experiment performed by Mendel between a tall (TT) plant...

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  5. Which of the following statement is true for variation in organisms? ...

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  6. A snail can change its sex. What does it indicate?

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  7. Statement A: Fossils are considered as ancient documents. Reason R: ...

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  8. Which theory tells us how life evolved from simple to more complex for...

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  9. Identify me :I am small change in an organism, even though significant...

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  10. Find mismatched pair. (a) Gene flow - Bound to happen between popula...

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  11. Find correct sequence for the expression of tall trait in pea plant. ...

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  12. Which evolutionary explanation is correct about the feathers ? (a) B...

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  13. The character of inflated peapod is dominant (I) and that of the shrun...

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  14. "Trilobite" : "Invertebrate Fossil" :: "Dinosaur skull :.................

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  15. According to evolutionary origin of eye- structure, arrange following ...

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  16. Who am I? I provide diversity to organisms without any adaptations j...

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  17. Who suggested that life must have developed from the simple inorganic ...

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  18. Which of the following are examples of artificial evolution ? Wild c...

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  19. State the name of scientists who had successfully synthesised amino ac...

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  20. State the name of ideas essential for understanding evolution.

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