Environmental sex determination - Vidyadip

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Environmental sex determination

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Answer

Widow’s peak is a prominent ‘V’ shaped hairline on forehead.
It is due to autosomal dominant gene.
Widow’s peak occurs in homozygous dominant (WW) and also heterozygous (Ww) individuals.
Individuals with homozygous recessive (ww) genotype do not have widow’s peak but have a straight hair line.
Both males and females have equal chance of inheritance.

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