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The ultimate source of variations is...

The ultimate source of variations is

A

Fertilization

B

Mitosis

C

Meiosis

D

Mutations

Text Solution

Verified by Experts

The correct Answer is:
D
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DINESH PUBLICATION ENGLISH-GENETIC BASIS OF INHERITANCE-Revision Questions From Competitive Exams
  1. Which one is a dominant trait out of the characters chosen by Mendel ?

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  2. R is dominant red flowerr trait while r is recessive white flower trai...

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  3. The ultimate source of variations is

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  4. Source of mendelian recombination is

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  5. 1:2:1 phenotypic and genotypic ratios occur in case of (a) Blending/i...

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  6. Correct reason for Mendel's success was

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  7. Sickle cell anaemia is :

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  8. By cross pollinating certain tobacco species, some fertile hybrids wer...

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  9. Independent assortment of genes does not take place when

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  10. In pea, wrinkling of seeds is due to nonformation of starch because of...

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  11. When both parental alleles are expressed together it is called .

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  12. In complementary genes, the dihybrid ratio of 9:3:3:1 is modified to

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  13. On crossing two similar hybrids, the percentage of recessive is

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  14. Number of genotype found in F(2) progeny of a dihybrid cross is

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  15. Heterozygous tall (Tt) is crossed with homozygous tall (TT). Percentag...

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  16. Pleiotropic effect is found in

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  17. Which of the following cross determines heterozygosity or homozogosity...

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  18. Tt xx tt is

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  19. In sickle cell anaemia, there is change in amino acid in beta chain at...

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  20. Which is wrong about Mendel ?

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