Cross individual A heterozygous (female), with individual B who is homozygous recessive for all genes involved. Heterozygous individual crossed with a fully recessive should give 1:1:1:1. If there are two many parental phenotypes and too few recombinant types, the genes are linked.
Sephia apertous not on the same chromosome
Results of Cross #6 Parents (Female: +) x (Male: SS;SE) Offspring Phenotype Female: + Male: + Female: SS Male: SS Female: SE Male: SE Female: SS;SE Male: SS;SE Total
Number Proportion Ratio 175 0.1777 3.017 176 0.1787 3.034 60 0.0609 1.034 58 0.0589 1.000 69 0.0701 1.190 65 0.0660 1.121 196 0.1990 3.379 186 0.1888 3.207 985
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