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The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of

A. all heterozygous tall

B. two tall and two dwarf

C. one homozygous tall, two heterozygous tall and one homozygous dwarf

D. all homozygous dwarf.

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  1. How many meiosis will be required to produce 102 pollen-grains ?
  2. Dyad is
  3. The term 'meiosis' was coined bv
  4. Transfer of a gene or genes through a virus is called
  5. The chromosomal theroy of heredity implies that
  6. DNA duplication occurs in
  7. The scientists who rediscovered the Mendel's laws are
  8. The first person to induce mutations was
  9. Among the following which is a test cross?
  10. In humans, an example of sex-linked trait is
  11. Crossing over in meiosis occurs in
  12. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  13.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  14. Which one of the following chemical characteristics is not common to all living beings ?
  15. A codon is a sequence of 3 nucleolides on
  16. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  17. Linkage is
  18. Base substitutions from base analogues I are called
  19. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  20. Exhibition of superiority by a hybrid over both of its parents is called
  21. The segment of DNA which participates in crossing over is known as
  22. The genetic constitution of an organism is known as
  23. Which disease results from the genetic inability to synthesize a single enzyme ?
  24.  A chemical mutagen is
  25. Albinism in com plants is best described as
  26. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  27. Klinefelter's syndrome is developed when the chromosome in male is
  28. If an individual does not breed true for its characters, it is called
  29. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  30. The condition in which only one allele of a pair is present is known as