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The science dealing with study of inheritance and variation is

A. Genetics

B. Evolution

C. Morphology

D. Cytology

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  1. When two genes are situated very close to each other in a chromosome
  2. Crossing over in meiosis occurs in
  3.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  4. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  5. Linked genes may be separated by the process of
  6. Chromosomes exhibit minimum coiling during
  7. When is the sex of an offspring decided
  8. In a monohybrid cross the Fi ratio of a backcross is
  9. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  10. Transfer of a gene or genes through a virus is called
  11. Which disease results from the genetic inability to synthesize a single enzyme ?
  12. The best method to determine whether an individual is homozygous or heterozygous is
  13. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  14.  A chemical mutagen is
  15. Klinefelter's syndrome is developed when the chromosome in male is
  16. Exhibition of superiority by a hybrid over both of its parents is called
  17. Which one of the following chemical characteristics is not common to all living beings ?
  18. Albinism in com plants is best described as
  19. Colour blindness is caused due to
  20. In humans, an example of sex-linked trait is
  21. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  22. The genetic constitution of an organism is known as
  23. A codon is a sequence of 3 nucleolides on
  24. How many meiosis will be required to produce 102 pollen-grains ?
  25. Down's syndrome is an example of
  26. The number of characters investigated by Mendel was
  27. Lethal genes are those which
  28. The condition in which only one allele of a pair is present is known as
  29. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  30. The scientists who rediscovered the Mendel's laws are