Across
- 1. two different alleles at a gene
- 6. the physical traits from a gene
- 8. exchanging chunks of the DNA between homologous chromosomes
- 11. the woman who first photographed DNA using X-rays [last name]
- 14. a picture of all the chromosomes in a cell
- 15. the female reproductive unit
- 16. cell division that makes two identical cells
- 17. one of the men who discovered the structure of DNA [last name]
- 18. the male reproductive unit
- 19. a fertilized egg
- 21. only needs one copy of the allele to show
Down
- 2. a small piece of DNA that codes for a protein
- 3. a heterozygote; someone has a copy of the affected allele and the normal allele
- 4. two of the same allele at a gene
- 5. a diagram to visualize all possible offspring from two parents
- 7. the man to discover simple dominance
- 9. cell division that makes sperm or egg cells
- 10. different forms of a gene
- 12. needs two copies of the allele to show
- 13. a diagram to visualize genes in a family tree
- 20. the genetic makeup of a gene