Genetics

12345678
Across
  1. 5. an organism's observable traits produces by genes and environment
  2. 6. the study of heredity and variation
  3. 7. an event where one thing is replaced with another
  4. 8. having dissimilar alleles
Down
  1. 1. an organic compound essential to living cells
  2. 2. having identical alleles
  3. 3. the transmission of genetic factors to the next generation
  4. 4. a threadlike strand of DNA that carries