What colour of eyes and hair will your baby have if you blonde blue the father has brown eyes?

Predicting the eye and hair colour of a future baby is not a precise science, as several factors, including genetics and environmental elements, can influence these characteristics. Here's a general explanation based on the assumption that both parents have traits for blonde hair and blue eyes:

Eye Colour:

- Brown-eyed father: If the father has brown eyes, he likely carries both dominant brown eye genes.

- Blonde, blue-eyed mother: She may carry both recessive blue eye genes.

When the father contributes a dominant brown eye gene, and the mother contributes her recessive blue eye gene, the child has a 50% chance of inheriting brown eyes and a 50% chance of inheriting blue eyes.

Hair Colour:

- Blonde mother: She may carry both recessive blonde hair genes.

- Brown-eyed father: He may have either two brown hair genes (dominant trait) or one brown and one blonde hair gene (heterozygous).

If the father has two brown hair genes, he will pass on the dominant brown hair gene, and the child will have brown hair.

If the father has one brown and one blonde hair gene, there's a 50% chance he'll pass on the blonde hair gene and a 50% chance he'll pass on the brown hair gene. If he passes on the blonde hair gene, and the mother contributes both her recessive blonde hair genes, the child will have blonde hair.

It's essential to remember that genetics is complex, and other genes may also influence eye and hair colour. Additionally, environmental factors like sun exposure and ageing can affect hair colour over time. Therefore, it's hard to make precise predictions about a baby's physical traits solely based on the parents' characteristics.