Smurfs are imaginary creatures who are normally blue (Bl), fuzzy (Fz), and industrious (In). Data from a three-point testcross are shown below.
Phenotype Genotype Number
Normal Bl-, Fz-, In- 324
White blbl, Fz-, In- 49
Bald Bl-, fzfz, In- 3
Lazy Bl-, Fz-, inin 42
white, bald blbl, fzfz, In- 32
white, lazy blbl, Fz-, inin 5
bald, lazy Bl-, fzfz, inin 51
white, bald, lazy blbl, fzfz, inin 309
Total: 815
a. What is the genotype of the triply heterozygous parent?
b. What is the order and distance in map units between the three genes?
Ans a: The genotype of the triply heterozygous parent would be Bl, Fz, In and bl, fz, in
Ans b: The distance between Bl and Fz is 13.3%, (51 + 49 + 5 + 3)/815 = 0.13, and Fz and In is 10.1%, (42 + 32 +5 + 3) = 0.101
Bl-----13.3-----Fz-----10.1-----In
Smurfs are imaginary creatures who are normally blue (Bl), fuzzy (Fz), and industrious (In). Data from...