Across
- 1. The number of offspring left behind determine an organism's
- 4. Boat that Darwin sailed on
- 6. Outward appearance of a trait
- 7. RNA is made from a DNA template
- 9. Amino acids are the building blocks of
- 11. Most of a cell's DNA is found here
- 14. Structures that serve little or none of their original purpose
- 15. The father of genetics
Down
- 1. Birds that demonstrated adaptive radiation on the Galapagos
- 2. The selective agent of natural selection
- 3. Change in species over a long period of time
- 5. Islands where Darwin collected much of his evidence
- 8. The number of codons needed for one amino acid
- 10. The sugar found in RNA
- 12. This nucleotide is only found in RNA
- 13. A gene for a specific trait