Eye/Hair Colour Variations?

Please could someone tell me the various combinations for the hypothetical children of this hypothetical couple? I'll include details on their families, too. Thanks.

(In case anyone wonders, I'm using characters from the Harry Potter series)

Lily has dark red hair, an oval shaped face, and almond shaped bright green eyes. Her sister, Petunia has a thin face, blue eyes and blonde hair.

Eileen, Severus' Mum, has brown hair and brown eyes. His father, Tobias, has a hooked nose, black hair and brown eyes. Severus himself has black hair, black eyes and a thin, a hooked nose and a thin, pale face.

Out of four children, which features will they inherit from their parents? I'm curious to know about eye/hair colour variations, and thought actual characters would be easier to work with.

Thanks.

:-)

Eye/Hair Colour Variations?

There is no single right or wrong answer to that question (as of now). Nobody knows what causes black eyes (or hazel or gray eyes), the way the green eye gene (gey) works is unclear, and the genetics of hair colour are messy too.

Just to be helpful, I would suggest the following: two with black hair, one with brown hair and one with auburn hair. Everyone will have brown or black eyes. This may not be entirely correct, but nobody should be able to prove you wrong either!

Eye/Hair Colour Variations?

I caution you that, while in basic science text books hair color and eye color are simple recessive/dominant traits, most of these traits are heavily epistatic; that is they are determined by several genes and the probability quickly becomes a nightmare.

Eye/Hair Colour Variations?

Yes I fully agree with the previous poster that it can be difficult to predict these. Also can you indicate which parents' child's characteristics you would like to predict?

As a side note, where does it say petunia has blue eyes? And that Lily has dark red hair. Just wondering.