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Point mutation may occur due to...

Point mutation may occur due to

A

alteration in DNA sequence

B

change in a single base pair of DNA

C

deletion of a segment of DNA

D

gain of a segment in DNA

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The correct Answer is:
B
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NCERT FINGERTIPS-PRINCIPLES OF INHERITANCE & VARIATION-Principles Of Inheritance & Variation
  1. Rate of mutation is affected by

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  2. Insertion or deletion of a single base causes

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  3. Point mutation may occur due to

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  4. Select the incorrect statement regarding pedigree analysis

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  5. Which one is the incorrect match ?

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  6. Study the given pedigree chart showing the inheritance if an X-linked ...

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  7. In humans polydactyly (i.e., presence of extra fingers and toes) is de...

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  8. Fused ear lobes appear in the progeny due to an autosomal recessive ge...

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  9. Wife is PTC non-taster and husband is PTC taster. Their son is taster ...

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  10. In the following pedigree chart, the mutant trait is shaded black. Th...

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  11. Given pedigree chart depicts the inheritance of attached ear lobes, an...

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  12. Study the pedigree chart of a family showing the inheritance of sickle...

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  13. Study the pedigree chart of a family showing the inheritance of myoton...

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  14. Refer to the given family tree and answer the question If A= norm...

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  15. Refer to the given family tree and answer the question What are ...

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  16. Inheritance of which of the following traits is shown in the given cro...

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  17. "" is an example of X-linked recessive trait

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  18. If a haemophilic man marries a carroes women than which of the followi...

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  19. The possibility of a female becoming haemophilic is extremely rare bec...

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  20. Result of a cross between a normal homozygous female and a haemophili...

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