Will your baby look more like mum or dad? This calculator uses genetic dominance patterns across five key visible traits to estimate which parent your baby is most likely to resemble.
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Generated at traitgen.com, Free genetics education. Not medical advice.
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⚠️ Educational only. Probability estimates based on genetic models, not medical advice.
Research shows that newborns tend to resemble their fathers more than their mothers in the first few days of life — a possible evolutionary adaptation to help fathers recognise and bond with their offspring.
Look-alike inheritance is the net sum of dominant and recessive expressions. Traits like brown eyes, dark hair, roman nose, darker skin tones, and oval face shape are dominant. If one parent carries more dominant traits than the other, their child is statistically more likely to share physical similarities with them.
Genetically, a child gets exactly 50% from each parent. However, the expression of dominant features determines which parent the child resembles more visually.
A baby's features change rapidly in the first year of life as cartilage hardens, fat redistributes, and melanin production activates.
If a parent has a dominant trait, the child has a high probability of inheriting and expressing it, boosting resemblance to that parent.
Even if a gene is inherited, epigenetic switches can turn it on or off, creating minor differences in facial resemblance.
Some studies suggest newborns may temporarily resemble fathers, which historically helped confirm paternity, but long-term resemblance varies randomly between parents.
Yes, if the baby inherits multiple recessive genes that have been hidden in parents' carrier genotypes, they can display traits not visible in either parent.
Melanin levels and skull structures settle during the first few months. Bone structures and fat layers shift, creating new resemblance patterns.
Mothers pass down mitochondria (cell energy). Facial bone structures, tooth size, and jaw size are often influenced more by paternal genetic markers.