Crossword Life Science

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Across
  1. 3. the changing of structure of a gene
  2. 4. the ratio of a particular allele to the total of all other alleles of the same gene in a given population
  3. 7. the process of whereby organisms better adapted to their environment tend to survive and produce more offspring
  4. 8. variation in the relative frequency of different genotypes in a small population
  5. 9. the process of transmission of genes from parent to offspring
Down
  1. 1. the difference in DNA
  2. 2. a narrow section of road or a junction that impedes traffic flow
  3. 5. the change or the process of change by which the organism or species becomes better suited to its environment
  4. 6. the condition of being physically fit and healthy