Advanced Placement (AP), 21.04.2021 19:20, kevonmajor
The data above represent the results of three different crosses involving the inheritance of a gene that determines whether a certain organism is blue or white. Which of the following best explains the mechanism of inheritance of the gene?
The allele for white is an autosomal dominant allele because a 1:1 phenotype ratio of blue to white among both sexes is observed in cross 3.
The allele for white is an autosomal dominant allele because a , 1 to 1, phenotype ratio of blue to white among both sexes is observed in cross 3.
A
The allele for blue is an autosomal dominant allele because an approximate 3:1 phenotype ratio of blue to white is observed in cross 1.
The allele for blue is an autosomal dominant allele because an approximate , 3 to 1, phenotype ratio of blue to white is observed in cross 1.
B
The allele for white is an X-linked dominant allele because no white females are produced in cross 1.
The allele for white is an X-linked dominant allele because no white females are produced in cross 1.
C
The allele for blue is an X-linked dominant allele because there are no blue male offspring in cross 2.
Answers: 3
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