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The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by

A. fission

B. budding

C. asexual means

D. sexual means

Correct Answer : D.


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  1. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  2. Reverse transcription was discovered by
  3. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  4. The scientists who rediscovered the Mendel's laws are
  5.  A chemical mutagen is
  6. DNA duplication occurs in
  7. Crossing over in meiosis occurs in
  8. Colour blindness is caused due to
  9. If an individual does not breed true for its characters, it is called
  10. Dyad is
  11. Which disease results from the genetic inability to synthesize a single enzyme ?
  12. How many meiosis will be required to produce 102 pollen-grains ?
  13. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  14. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  15. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  16. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  17. The nuclear membrane completely disappears during
  18. When is the sex of an offspring decided
  19. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  20. Mutations which are not dominant are not lost by a gene pooL This is known as
  21. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  22. Exhibition of superiority by a hybrid over both of its parents is called
  23. Among the following which is a test cross?
  24. The term 'meiosis' was coined bv
  25. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  26. Which one of the following chemical characteristics is not common to all living beings ?
  27. Albinism in com plants is best described as
  28. Linkage is
  29. Klinefelter's syndrome is developed when the chromosome in male is
  30. The chromosomal theroy of heredity implies that