Sickle Cell Anemia Cross
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Text Elements
Cross of a wild-type heterozygous M and F
Let B represent the dominant biconcave blood cell allele
Let B represent the dominant sickle blood cell allele
Wild-Type
Blood
Wild-type
Blood
Offspring Genotypes
Offspring Phenotypes
25%
50%
25%
75% Wild-type Blood
25% Sickle Blood
Identify Organisms of the Cross
Define Variables for the Alleles
Generate Gametes and complete the Punnet Square
Provide Genotype%
Provide Phenotype%
N
B
B
B
B
N
N
S
B
B
B
B
B
B
B
N
B
B
B
B
B
S
S
N
N
S
S
N
N
N
S
S
S
S
B
N
B
S
B
B
S
S
B
B
N
N