AP biology

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Across
  1. 3. Biological catalyst that speeds up chemical reactions
  2. 6. Often caused by reproductive isolation
  3. 7. Change in DNA sequence of an organism
  4. 10. Synthesizing RNA from a DNA template
  5. 11. Two variations of a trait are both shown in a heterozygote
  6. 13. Circular piece of DNA commonly found in bacteria
  7. 14. Observable traits of an organism
  8. 15. Movement of molecules from high to low
  9. 16. An organism's ability to survive and reproduce
Down
  1. 1. When lacking oxygen, organisms perform this
  2. 2. Variety of organisms in an ecosystem
  3. 4. Group of genes regulated together in prokaryotes
  4. 5. Three-nucleotide sequence on mRNA strand
  5. 8. Programmed cell death
  6. 9. Role of an organism in its environment
  7. 12. Alternative version of a gene