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An offspring of two homozygous parents different from one another by alleles at only one gene locus is known as

A. monohybrid

B. dihybrid

C. trihybrid

D. backcross

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  1. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  2. If an individual does not breed true for its characters, it is called
  3. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  4. When two genes are situated very close to each other in a chromosome
  5. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  6. Reverse transcription was discovered by
  7. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  8.  A chemical mutagen is
  9. Albinism in com plants is best described as
  10. The nuclear membrane completely disappears during
  11. A codon is a sequence of 3 nucleolides on
  12. Chromosomes exhibit minimum coiling during
  13. Colour blindness is caused due to
  14. Down's syndrome is an example of
  15. The scientists who rediscovered the Mendel's laws are
  16. Linked genes may be separated by the process of
  17. Base substitutions from base analogues I are called
  18. DNA duplication occurs in
  19. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  20. The condition in which only one allele of a pair is present is known as
  21. Transfer of a gene or genes through a virus is called
  22. Lethal genes are those which
  23. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  24. Linkage is
  25. The chromosomal theroy of heredity implies that
  26. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  27. Dyad is
  28. The genetic constitution of an organism is known as
  29. The science dealing with study of inheritance and variation is
  30. The first person to induce mutations was