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When an amino acid is replaced by anothe...

When an amino acid is replaced by another owing to a mutation, it is called

A

Non-sense mutation

B

Point mutation

C

mis-sense mutation

D

Frameshift mutation

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The correct Answer is:
C
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The reaction in which one atom of a molecule is replaced by another atom is called

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When a purine is replaced by a pyrimidine in a part of DNA the mutation so produced is called

Which of the following statements are correct? I. Point mutations involve deletion of a part of chromosome. II.When a purine base is replaced by another purine and pyrimidine by another pyrimidine, it is transition. III.In frameshift mutations, one nitrogenous base is substituted by other. IV.When a purine is replaced by a pyrimidine and vice-versa, it is called transversion.

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ARIHANT NEET-CHROMOSOMAL BASIS OF INHERITANCE-Chapter Exercises A Taking it together (Assorted Questions of the Chapter for Advanced level Practice )
  1. Who has introduced X-rays mutations in barley and maze ?

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  2. A hypothetical series of 20 multiple alleles is known for a certain lo...

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  3. When an amino acid is replaced by another owing to a mutation, it is c...

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  4. Which one of the following is not a mutagen

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  5. The ultimate biological unit which controls heredity, is called :

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  6. Bent', a dominant sex-linked allele B,in the mouse results in a short,...

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  7. The frequency of a mutant gene in a population is expected to increase...

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  8. A species or type of a plant derived from doubling the chromosome of F...

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  9. Abyssinian oat is a teraploid with 28 chromosomes. The common cultivat...

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  10. First definite proof of mutagenic action (effect) of X-rays was discov...

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  11. Tautomerisation is seen in

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  12. Dhatura is a classical example of a

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  13. If the haploid number of chromosomes in a plant is 12, then the number...

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  14. Beadle and Tatum induced mutation in Neurospora crassa by

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  15. The mutation in germ cells

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  16. The smallest element or sub division of a gene, which can be affected ...

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  17. Mutations do not result in

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  18. How many gametes contain a dominant mutation, if 1/1500 babies show th...

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  19. If the haploid number of chromosome is 10. Then, what is a terasomic n...

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  20. The creation of mutations is called :

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