Broad and thin lips are inheritable characteristics in humans. When a homozygote broad lipped man is married to a homozygote thin lipped woman, all the...

Broad and thin lips are inheritable characteristics in humans. When a homozygote broad lipped man is married to a homozygote thin lipped woman, all the children in the family are broad lipped. In a particular family, a woman that is heterozygote for broad lips is married to a man whose parents were both thin lipped. Let B represent gene for broad lips.
(a) Work out the genotypes of the children in that family. (Use a punnet square

(b) Work out the phenotypic ratio and genotypic ratio of the resulting children from the crossing in (a) above

(c) Give two sex- linked traits in man.

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a)

b)Phenotypic ratio: 1 broad lipped:1 thin lippped;
Genotypic ratio: 1Bb: 1bb

c)
i) Pre-mature baldness;
ii) Hairy ear pinnae

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marto answered the question on September 25, 2019 at 08:28

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