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In a monohybrid cross the Fi ratio of a backcross is

A. 1:1

B. 3:1

C. 1:2:1

D. 9:3:3:3

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  1. Reverse transcription was discovered by
  2. DNA duplication occurs in
  3. The best method to determine whether an individual is homozygous or heterozygous is
  4. The scientists who rediscovered the Mendel's laws are
  5. If an individual does not breed true for its characters, it is called
  6. Base substitutions from base analogues I are called
  7. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  8. The condition in which only one allele of a pair is present is known as
  9. Transfer of a gene or genes through a virus is called
  10. The term 'meiosis' was coined bv
  11. Chromosomes exhibit minimum coiling during
  12. Linked genes may be separated by the process of
  13. A codon is a sequence of 3 nucleolides on
  14. Diakinesis is characterised by
  15. Lethal genes are those which
  16. Albinism in com plants is best described as
  17. The science dealing with study of inheritance and variation is
  18. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  19. When two genes are situated very close to each other in a chromosome
  20. Which one of the following chemical characteristics is not common to all living beings ?
  21. When is the sex of an offspring decided
  22. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  23. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  24. The nuclear membrane completely disappears during
  25. Among the following which is a test cross?
  26. Colour blindness is caused due to
  27. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  28. The genetic constitution of an organism is known as
  29. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  30. The first person to induce mutations was