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This should be pretty easy to demonstrate. Over the two generations, there would be 200-300 mutations in the entire genome of 3.3*109 base pairs, i.e. about 1*10-7 of the base pairs should be altered. If Time Traveler is male, for example, imply sequencing the Y chromosome and mitochrondrial DNA and comparing to the paternal grandfather and maternal ...


4

Claudia's dad is not a taster, so he is tt. He passes one allele on to his daughter. Since he is homozygous, he can only pass t. Claudia is a taster, so she must have the dominant allele from her mother, who is also a taster. Thus, Claudia is Tt.


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Actually there is a specific term for this called hemizygous / hemizygote - meaning that that only one allele of the gene is present. Therefore males cannot be heterozygous for genes on the X or Y chromosome (not counting for gene duplication or other chromosome disorders) since they naturally carry only one copy of these chromosomes.


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It sounds like you pretty much have it. Hemophilia is recessive, meaning that a single function copy of the necessary clotting genes will be sufficient to function. So a female can inherit defective genes on one X chromosome and functional genes on the other and be perfectly fine. However, if a male inherits defective genes on one X chromosome he will have ...


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Because males only have one X chromosome, they can only have one copy of any gene found on the X chromosome, and therefore only have one allele. This means that in the case of a recessive disorder like hemophilia, should they happen to inherit a recessive allele from their mothers, they will have the recessive (disordered) phenotype because there is no other ...


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Haemophiliac females are rare but they can survive just like affected males do. However, the case is slightly more complicated in women because of menstruation. I could not find an article from any medical journal but this site seems authentic enough for a reference.



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