Adaptation and Evolution Crossword

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Across
  1. 2. Two different species evolving with similar traits
  2. 5. Where only the strong survive and the weak die
  3. 6. the accumulation of differences between groups which can lead to the formation of new species
  4. 8. The dramatic change in species over a short period of time
  5. 9. A model that shows the gradual changes to a species
  6. 11. Where individuals with similar genotypes and/or phenotypes mate with one another
  7. 12. Or allelic drift is the change in the frequency of a gene variant (allele) in a population due to random sampling
  8. 14. Major component of DNA
  9. 15. Changes in alleic frequencies over time
  10. 16. A nitrogen-containing molecule having the chemical properties of a base
Down
  1. 1. The evolutionary process by which new biological species arise
  2. 3. The transfer of alleles or genes from one population to another
  3. 4. Scientific name for DNA
  4. 7. A property shared between two nucleic acid sequences
  5. 10. Structure of DNA
  6. 13. A change of the nucleotide sequence of the genome of an organism