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The term 'meiosis' was coined bv

A. Herting and Van Beneden

B. Sutton and Boveri

C. Hofmeister and Waldeyer

D. Farmer and Moore

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  1. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  2. Base substitutions from base analogues I are called
  3. Exhibition of superiority by a hybrid over both of its parents is called
  4. Linkage is
  5. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  6. A codon is a sequence of 3 nucleolides on
  7. If an individual does not breed true for its characters, it is called
  8. In humans, an example of sex-linked trait is
  9. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  10. Linked genes may be separated by the process of
  11. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  12. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  13. The chromosomal theroy of heredity implies that
  14. The scientists who rediscovered the Mendel's laws are
  15.  A chemical mutagen is
  16. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  17. DNA duplication occurs in
  18. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  19. When is the sex of an offspring decided
  20. Lethal genes are those which
  21. Klinefelter's syndrome is developed when the chromosome in male is
  22. Among the following which is a test cross?
  23. Down's syndrome is an example of
  24. When two genes are situated very close to each other in a chromosome
  25. Which one of the following chemical characteristics is not common to all living beings ?
  26. Chromosomes exhibit minimum coiling during
  27. The nuclear membrane completely disappears during
  28. Colour blindness is caused due to
  29. Mutations which are not dominant are not lost by a gene pooL This is known as
  30. The segment of DNA which participates in crossing over is known as