In chickens, females have two different sex chromosomes (Z and W), while the males have two Z chromosomes. A Z-linked gene controls the pattern of the feathers, with the dominant B allele causing the barred pattern and the b allele causing nonbarred feathers. Which of the following crosses would produce all daughters of one type (barred or nonbarred) and all sons of the other type?
A) barred females × nonbarred males
B) nonbarred females × barred males
C) nonbarred females × nonbarred males
D) barred females × barred males
E) More than one of the choices is correct.
A) barred females × nonbarred males
You might also like to view...
Species interactions between members of a
community include __________, which harms both species. Fill in the blank(s) with the appropriate word(s).
The reptiles, which include lizards, snakes, alligators, crocodiles, turtles, and birds, evolved from the _____.
A) reptiles. B) amphibians. C) vertebrates. D) both A and C E) both B and C
Two different organisms CANNOT have the same scientific name.
a. true b. false
Which of the following facts did Hershey and Chase make use of in trying to determine whether DNA or protein is the genetic material?
a) DNA contains phosphorus, whereas protein does not b) DNA contains nitrogen, whereas protein does not c) DNA contains purines, whereas protein includes pyrimidines d) DNA contains sulfur, whereas protein does not