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Q: When a man can roll his tongue what is the genotypes and phenotypes?
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What is the phenotype of a man who has 2 parents with free hanging earlobes if one parent is homozygous and the other parent is heteroygous... what are his possible genotypes?

The possible genotypes HH and Hh. 50% homozygous for hanging earlobes (HH), and 50% heterozygous for hanging earlobes (Hh).


What color is a person with AAbb genotype?

if a man were non- hemophiliac and he marries a woman whois homozygus for nan-hemophilia,give the possible genotypes of the children


If a female carrier for hemophilia mates with a healthy male who doesn't have hemophilia what are the expected genotypes and phenotypes of their children?

Haemophilia is a recessive, X-based disorder. The woman in your question is a carrier, meaning she has the defective gene, but isn't bothered by it. Therefor, the woman is of the type 'Xx'. The man is of the type 'XY', not carrying the defective gene. Their children can then be: XX, xX, XY, xY. This means that their daughters won't be affected by it, but might carry it, and their sons either not carry it at all, or carry it and be haemophilic.


When a tongue rolling man has a baby to a non tongue rolling women all the babies are tongue rollers explain why this occurs?

Tongue rolling is homozygous dominant and all issue from this pairing will be tongue rollers. This is the only result that is allowable with a standard Punnett square or branch diagram representation. T = tongue roller t = non-tongue roller TT X tt = 4 Tt ======With tongue rolling expressed.


Type B blood marries a woman with type A they have six AB children what are there genotypes?

The woman could be AA or AO and the man could be BB or BO. The children would all be AB.