can someone please help me with this biology question? please I'll fan and give a medal...

Question

abbycross167 · Answer

question- Pretend that eyes only come in three colors, brown, green and blue, as described in question 4. Is it possible for a brown eyed father and a green eyed mother to have a blue eyed child? Explain fully and use a Punnett Square if necessary.

mathmate · Answer

Hint: Complete and use the Punnett square in question 4 to answer this question. The Punnett square has already been started here: http://openstudy.com/study#/updates/58062a06e4b05a233fe7a24c

abbycross167 · Answer

This is how I did it, does it look alright?

abbycross167 · Answer

@mathmate

habbababba1 · Answer

no it wouldnt b possible because our eyes are a genetic trait which is passed down to us from out relatives so no it would not b possible for them to have a blue eyes child

mathmate · Answer

@abbycross167 Your Punnett square is correct, except for two slips. To find those, you just need to look down each column. All cells should have the same 3rd and 4th letters. Going back to the question of blue eyes offspring from brown and green-eyed parents. We understand from the Punnett square (or otherwise) that blue-eyed individual have to have both eye-colour genes bb, i.e. recessive for both genes. Therefore to have a blue-eyed offspring, both parents must have at least one b in each allele (to make bbbb). Can you figure out the possible allele configurations of each parent? For related interesting reading, try : http://genetics.thetech.org/ask/ask2 and http://genetics.thetech.org/ask/ask59

abbycross167 · Answer

@mathmate Thank you! I found my mistake!

mathmate · Answer

You're welcome!  :)