1. 106 CHAPTER 9. Experimental Genetics CROSS #2: ALLELIC SYMBOLS CROSS 2: P
GENERATION CROSS #2: F, GENERATION 2. You are conducting these crosses to determine
which mode of inheritance governs the genes in each cross. In order to recognize which
inheritance pattern best fits your data, you will need to have made predictions for all of the
possible inheritance patterns for both of your crosses. This is why you perform Punnett squares for
both of your crosses. a. For Cross $1, draw a Punnett square in the space below to indicate what
the F2 generation will be if the genes are autosomal and not linked (i.e, they assort
independently). Specify the number of each phenotype you expect to be present in the F2
generation, as well as the ratio of all phenotypes. Both Batio m 1:1:1:1 ecessive, Dominant both,
Dominant eyelre cessive body, resessive eye/domin aut bodyCHAPTEA 9. Experimental Genetics
107 b. For Crost s1, inaw two purniet aquares is the space below to inilicute what. the Fat and F2
senerition will be if the genis the space below to indicate stat number of each phenotype you
expect to be present in the Fi, genenation, at 11:1:1:1Ratio: dom. both 9 dom.both I rec.both &
rec.both c. For Cross 1 , draw two Punnett squares in the space below to indicate what the F1 and
F2 generation will be if the genes are autosomally linked. Speeify the number of each phenotype
you expect to be preseat in the F1 generation, as well as the ratio of all plenotypes. 1:1Ratio 1
dornowant both 1 recessive both d. For Cross =2 draw a Punnett scuare in the space below to
indicate what the F2 generation will be if the genes are autosomal and not linked. Specify the
number of each phenotype you expect to be present in the F2 generation, as well as the ratio of all
phenotypes.e. For Cross *2. draw a Punnett equare in the space below to indicate what the F3
generation will be if the genes are autosomally linked. Specify the namber of each phenotype you
expect to be present in the F1 generation. as well as the ratio of all phenotypes. f. For Cross :2,
draw a Punnett square in the space below to indicate what the F2 generation will be if the genes
are sex-linked. Specify the number of each phenotype you expect to be present in the F2
generation, as well as the ratio of all phenotypes.