heredity and inheritance

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Across
  1. 3. when both the alleles are of the same type
  2. 4. trait which expresses itself in heterozygous condition
  3. 6. father of genetics
  4. 8. transfer of characters from one generation to the other
  5. 9. alternate forms of the same gene
  6. 11. total genetic composition of the cell
  7. 12. alteration in the structure of DNA
  8. 13. externally visible morphological characters
Down
  1. 1. the 22 pairs of chromosomes
  2. 2. when both the alleles express themselves
  3. 5. trait which expresses itself only in homozygous condition
  4. 7. genetic material
  5. 10. genetic composition
  6. 11. unit of inheritance