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Across 8. when neither trait is dominant over another (black and white cows=Bb) 10. random assortment of chromosomes during meiosis 11. the formation of a zygote from two haploid cells fusing 12. a trait that is located on an X or Y chromosome 14. when two letters express the genetic makeup of an organism 16. Monk who studied peas and responsible for the science of early inheritance 18. punnett square tracking two traits from each parent 20. when alleles combine to form more than 3 phenotypes (skin, hair or eye color) 21. must be homozygous for phenotype to be seen (mm) 22. a type of allele that will mask another 23. the study of inheritance

Down 1. two identical alleles for one trait (HH or hh) 2. a trait in different forms 3. the chance of something happening listed in percentages, fractions or ratios 4. a tool used to predict probability of offspring 5. the separation of alleles during meiosis 6. one allele is not completely dominant over another (Ww=Pink) 7. when only one trait from each parent is crossed at a time 9. two different alleles for the same trait (E or e) 13. born from two genetically different parents 14. a segment of DNA that codes for a specific trait 15. offspring from asexually reproducing parent 17. a haploid cell with one-half the genetic information from each parent 19. the physical features being expressed in an organism