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. Colour blindness is caused due to
  2. When is the sex of an offspring decided
  3. Base substitutions from base analogues I are called
  4. The term 'meiosis' was coined bv
  5. In a monohybrid cross the Fi ratio of a backcross is
  6. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  7.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  8. The best method to determine whether an individual is homozygous or heterozygous is
  9. Which disease results from the genetic inability to synthesize a single enzyme ?
  10. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  11. Exhibition of superiority by a hybrid over both of its parents is called
  12. Linkage is
  13. Diakinesis is characterised by
  14. The scientists who rediscovered the Mendel's laws are
  15. Crossing over in meiosis occurs in
  16. The nuclear membrane completely disappears during
  17. The science dealing with study of inheritance and variation is
  18. DNA duplication occurs in
  19. Albinism in com plants is best described as
  20. The chromosomal theroy of heredity implies that
  21. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  22. Linked genes may be separated by the process of
  23. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  24. If an individual does not breed true for its characters, it is called
  25. Mutations which are not dominant are not lost by a gene pooL This is known as
  26. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  27. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  28. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  29. In humans, an example of sex-linked trait is
  30. Down's syndrome is an example of