Across
- 4. the alleles that are beat by others are called
- 9. one set of chromosomes come from each of our ______ (two words)
- 10. we have 23 pairs of _____ in each of our nuclei
- 11. for every gene, we have ____ copies
- 12. Four bases
- 13. a trait we gain from our environment
- 15. DNA is made of
- 16. twisted ladder
- 17. small changes in the ____ of DNA can create differences in traits
Down
- 1. every allele codes for a
- 2. genetic material, full word
- 3. for every physical trait, there is a ____ that codes for it
- 5. ____ backbone
- 6. DNA codes for this molecule
- 7. traits caused by our genes
- 8. different forms of genes are called _____
- 14. The allele that beats out the others are called