In parrots, annoying voices (A) are dominant to pleasant ones (a) and brightly colored feathers (B) are dominant to gray ones (b). You testcross a heterozygous annoying, brightly colored parrot and get 27 annoying, gray birds, 2 annoying bright birds, 30 pleasant bright birds, and 5 pleasant gray birds. What is the configuration of the two dominant parental alleles?

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN:9781305967359
Author:STARR
Publisher:STARR
Chapter13: Patterns In Inherited Traits
Section: Chapter Questions
Problem 6GP: In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele...
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In parrots, annoying voices (A) are dominant to pleasant ones (a) and brightly colored
feathers (B) are dominant to gray ones (b). You testcross a heterozygous annoying,
brightly colored parrot and get 27 annoying, gray birds, 2 annoying bright birds, 30
pleasant bright birds, and 5 pleasant gray birds. What is the configuration of the two
dominant parental alleles?
Coupling
O Neither
O Repulsion
Transcribed Image Text:In parrots, annoying voices (A) are dominant to pleasant ones (a) and brightly colored feathers (B) are dominant to gray ones (b). You testcross a heterozygous annoying, brightly colored parrot and get 27 annoying, gray birds, 2 annoying bright birds, 30 pleasant bright birds, and 5 pleasant gray birds. What is the configuration of the two dominant parental alleles? Coupling O Neither O Repulsion
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