Across
- 2. something shaped like a twisted ladder
- 4. A jelly like fluid inside the cell in which the organelles are suspended
- 6. cells that do not have a nucleus, the DNA floats freely in the cytoplasm
- 7. the scientific study of heredity
- 10. a pair of nitrogen bases that bond together in a DNA strand
- 11. one of the four nitrogen bases, binds to thymine
- 12. the result of small changes over time in the frequency a gene occurs in a population, which may gradually result in the formation of a new species
- 14. a change in the genetic structure or the structure of the nitrogen bases.
- 15. process illustrates how the genetic traits that give organisms a survival advantage will have a higher chance to reproduce and pass on their genes
- 16. one of the four nitrogen bases, binds to adenineObjective: To introduce what DNA is, the main function, and the possibility & effects of mutations.
- 17. a sequence of nitrogen bases that provides the instructions for building a protein
- 18. made of two or more elements bonded together; a molecule
- 19. chemical compounds that are the building blocks of proteins
- 21. the central part of a eukaryotic cell
- 22. an organic compound composed of amino acids
- 23. one of the four nitrogen bases, binds to cytosine
Down
- 1. one of the compounds that makes up the outer sides of the DNA helix; PO4
- 3. the compounds that make up the rungs of DNA and whose order forms the genetic code
- 5. the molecule that carries genetic information
- 8. a tightly wrapped and coiled up strand of DNA that is preparing for replication
- 9. the complete set of an organism’s chromosomes
- 13. cells that have a DNA in a nucleus
- 20. one of the four nitrogen bases, binds to guanine