In dogs, black coat color (B) is dominant to yellow coat color (b), and straight fur (C) is dominant to curly fur (c). The coat color gene and the fur texture gene are on different chromosomes, so they assort independently, and are not sex linked. In a cross between two BbCc parents, predict the fraction of offspring with black coat color and straight fur.
Answers
Answer:
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Explanation:
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Answer:The fraction of offspring with black coat color and straight fur is 9/16.
Explanation:
Information given:
black coat colour and straight fur - dominant genotype BBCC, BbCc
yellow coat colour and curly fur - recessive genotype bbcc
Both the traits are independently assorted. The fur colour and fur type is not present on the same chromosome and are not sex linked.
The genotype of the parents are:
BbCc X BbCc
Punnet square shows:
BC Bc bC bc
BC BBCC BBCc BbCC BbCc
Bc BBCc BBcc BbCc Bbcc
bC BbCC BbCc bbCC bbCc
bc BbCc Bbcc bbCc bbcc
9 BLACK STRAIGHT
3 BLACK CURLY
3 YELLOW STRAIGHT
1 YELLOW CURLY
9/16 is the fraction of progeny to be black coat colour and straight fur.
Explanation: