Question

In domestic cats there are many genes that affect coat colour and pattern. One of these loci is called spotting. Phenotypes associated with alleles at the spotting locus are incompletely dominant. Homozygous individuals of one type (SS) have white hair on more than 50% of their bodies, heterozygous individuals (Ss) have white hair on less than 50% of their bodies (commonly confined to underparts such as the legs/feet, belly, and chin), and homozygous individuals of the other type (ss) have no white hair at all. (See the online content of this lab for a photo illustrating the differences between SS, Ss, and ss cats.) You are interested in investigating microevolution at the spotting locus of domestic cats in your city. To collect data from a representative sample, you study photographs of cats that are up for adoption at local cat shelters.

Answer 1

I for charputer halt: The total fuequery of cat sacuple: 26. The proportion of long hair (11) .gg 3/26 = 0.115 q".0.1158) qə NO.115 = 0.34 r. as pra pelngay 1-0.34 = 0.66. PP - LL 0.66 0.6 x 26 > 11 Pas Lis 2xD 66 D 34726 = 12 - 23 y 0.34*0:34263 for charator white: qa= 25/26= 0.96 22 4096=0.98. p. 1-9. 1-0.98 0.02 PP > wwa 002 angx0:02x16 = 0 Ppt Wro - 0.98 +0.02% 272621 qr how = 0.98 +0.987 26 - 28

for white spotting 99• 3126= 0.1165 9. 0.1145 > So NO:115= 0.34V peing 1-0.34 30.66 SS w PP = white = 0.66 * 0166x26, 11w. See Pp = white a 0.66*0.34+24 26 = 12 ~ A ggo .white 0.34*0.14426 - ~