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Dyad is

A. a pair of homologous chromosomes

B. a pair of non-homologous chromosomes

C. a pair of sister chromosomes

D. a pair of non-sister chromosomes

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  1. Linkage is
  2.  A chemical mutagen is
  3. Reverse transcription was discovered by
  4. In humans, an example of sex-linked trait is
  5. The science dealing with study of inheritance and variation is
  6. When is the sex of an offspring decided
  7. Among the following which is a test cross?
  8. The chromosomal theroy of heredity implies that
  9. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  10. The term 'meiosis' was coined bv
  11. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  12. DNA duplication occurs in
  13. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  14. The genetic constitution of an organism is known as
  15. Mutations which are not dominant are not lost by a gene pooL This is known as
  16. Base substitutions from base analogues I are called
  17. The number of characters investigated by Mendel was
  18. Linked genes may be separated by the process of
  19. Colour blindness is caused due to
  20. In a monohybrid cross the Fi ratio of a backcross is
  21. The segment of DNA which participates in crossing over is known as
  22. Exhibition of superiority by a hybrid over both of its parents is called
  23. Which one of the following chemical characteristics is not common to all living beings ?
  24. When two genes are situated very close to each other in a chromosome
  25.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  26. The best method to determine whether an individual is homozygous or heterozygous is
  27. A codon is a sequence of 3 nucleolides on
  28. The condition in which only one allele of a pair is present is known as
  29. Diakinesis is characterised by
  30. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…