Among the following which is a test cross?

A. TtxTt


C. TTxTt

D. Ttxtt

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  1. The chromosomal theroy of heredity implies that
  2. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  3. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  4. Albinism in com plants is best described as
  5. Linkage is
  6. Which disease results from the genetic inability to synthesize a single enzyme ?
  7. Down's syndrome is an example of
  8. A codon is a sequence of 3 nucleolides on
  9. Mutations which are not dominant are not lost by a gene pooL This is known as
  10. The first person to induce mutations was
  11. If an individual does not breed true for its characters, it is called
  12.  A chemical mutagen is
  13. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  14. Linked genes may be separated by the process of
  15. The number of characters investigated by Mendel was
  16. The scientists who rediscovered the Mendel's laws are
  17. Among the following which is a test cross?
  18. Colour blindness is caused due to
  19. Reverse transcription was discovered by
  20. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  21. Chromosomes exhibit minimum coiling during
  22. The term 'meiosis' was coined bv
  23. Klinefelter's syndrome is developed when the chromosome in male is
  24. Lethal genes are those which
  25. How many meiosis will be required to produce 102 pollen-grains ?
  26. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  27. In a monohybrid cross the Fi ratio of a backcross is
  28. Exhibition of superiority by a hybrid over both of its parents is called
  29. When two genes are situated very close to each other in a chromosome
  30. Diakinesis is characterised by