The son, Seif, is born with sickle cell anemia. This means both parents carry the allele...

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Biology

The son, Seif, is born with sickle cell anemia. This means bothparents carry the allele for sickle cell anemia.
The father, Ahmad has a heterozygous genotype as told by thedoctor.
The mother can also be proved heterozygous for the trait sinceher mother was anemic. This means one of the affected alleles wasinherited from the mother.
So, the genotypes of Ahmad is Ss and that of Amina is Ss.
Gametes formed by Ahmad are S and s.
Gametes formed by Amina are S and s.
1 offspring having genotype SS does not carry the affectedallele and will be phenotypically normal.
2 offsprings having genotype Ss carry the affected allele butwill be phenotypically normal.
1 offspring having genotype ss have both affected alleles andwill be sickle cell disease.
X
S
s
S
SS
Ss
s
SS
ss
Question:
Fill the tables by doing the calculations andtransforming your results into one ratio, fraction, and percentagefor each genotype and phenotype
As such:
ratio 1:2:1, Genotypes: BB Â½ , 50%,Bb Â¾75%Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Phenotype: wrinkled 75%,Smooth 25%
Ratio:
Genotypes
Number
Fraction Form
Percentage
Ratio:
Phenotypes
Number
Fraction Form
Percentage

Answer & Explanation Solved by verified expert

3.7 Ratings (541 Votes)

1 Note Genotypes from the given table are SS homozygous not anemic Ss heterozygous not anemic ss homozygous anemic Genotype is genetic character The number of SS offsprings 2 number of Ss offsprings 1 number of ss offsprings1 From the above note a See Answer

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Ratio:
Genotypes
Number
Fraction Form
Percentage

Ratio:
Phenotypes
Number
Fraction Form
Percentage