Homework SourseIn chickens the following applies with regard to feather col
In chickens, the following applies with regard to feather color (B locus) and to a genetic defect called \"creeper\" (R locus). BB = black, Bb = slate blue, bb = white; RR = lethal (chick dies), Rr = creeper, rr = normal. Two heterozygous chickens are mated (BbRr times BbRr) calculate the probability of producing each of the following. Show work. a slate blue, creeper an offspring with genotype \"bbrr\" two male black creepers![In chickens, the following applies with regard to feather color (B locus) and to a genetic defect called \](/WebImages/26/in-chickens-the-following-applies-with-regard-to-feather-col-1068356-1761559233-0.webp "In chickens, the following applies with regard to feather color (B locus) and to a genetic defect called \")
Solution
Answer:
BbRr x BbRr
Bb x Bb = BB (1/4), Bb (1/2), bb(1/4)
Rr x Rr = RR (1/4), Rr (1/2), rr (1/4)
a). a slate blue, creeper = B_R_ = 3/4 * 3/4 = 9/16
b). An offspring with genotype \"bbrr\" = 1/4 * 1/4 = 1/8
c). Two male balck creepers.
Black, Creeper = BBRr = 1/4 * 1/2 = 1/8
Tow black, creeper probability = 2 * 1/8 = 1/4
