In humans, the thin lip gene is recessive to the thick lip gene. In the family, the woman has thin
| May 26, 2021 | education
In humans, the thin lip gene is recessive to the thick lip gene. In the family, the woman has thin lips, and the man has thick lips. The man’s father had thin lips.
Thick lips – A (dominant),
Thin lips – a (recessive sign).
Male – Aa (heterozygous, as his father had thin lips),
Woman – aa.
Aa * aa
Aa Aa aa aa
In this case, the probability of having a baby with thick lips is 50% and a 50% chance of having a baby with thin lips.
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