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Across 1. master control genes 7. chormosomes exchange genetic information during meiosis 14. genotypic differences between individuals from the same gene pool 15. chromosome pair fails to separate during meiosis 18. change in DNA of an organism 19. removal of aminotic fluid 20. tumors that are cancerous and spread 21. good origins or well born

Down 2. occurs in the nongamete or body or cells of organism 3. having a chromosome number that is an exact multiple of the haploid 4. change in form that an organism undergoes 5. tumor cells that stay within the capsule 6. organism that has three or more complete sets of chromosomes 8. lack chromosomes or have extra set 9. when only one or few nucleotides are changed 10. code for proteins that stimulate cell division 11. mutation in a gamete or a cell that forms gametes 12. crossbreeding of 2 genetically dissimilar individuals 13. segment of chromosome breaks off and reattaches at same position 16. have four complete sets of chromosome and are common in plants 17. complete loss of a segment