someone thats really good at science please help me with this genetics problem!?

Question

Mom has blue eyes and is a heterozygous roller and has an attached ear lobe dad is heterzygous brown eyed hterizygous roller and heterozygous free ear lobe what are the possibleities of the offspring?

Answer 1

Eye Bb
Tongue Rr
Ear Ff

Female bbRrff x Male BbRrFf

There are only four heterozygotic pairs so this is not a trihybrid cross.
All offsping get br from female so there are only two female gametes Rbf or rbf
Male has 8 possible gametes.
Draw a 2x 8 square
Eye color will appear 1:1
Ears attachment 1:1
Tongue rolling 3:1 because this is the only trait that is a hybrid cross Rr x Rr, the other two are back crosses Br x bb & Ff x ff.
This means R_ will appear in 3/4
B_ in 1/2 and F_ in 1/2
3/4 x 1/2 x 1/2 = 3/16 will be R_B_F_ genotypes.
The _ means it can be either allele.

Answer 2

Genetics can be tricky. Many times something that is considered a "hand-me-down-trait, may not manifest itself and lay dormant for years in the off spring, then boom, it pops uf from seemingsly now where. Just like twins in a family, sometimes yes, sometimes no.

The human body is a really screwed up organism that loves to play games.

There are ususally test that Genetic's can perform, but as the geo-nome gets unravelled more and more, things are easier to explaina nd test for.

Check with the family doctor and also check the "past" history for occurences in timelines.

Answer 3

oh goody. I despise genetics.

All you mentioned are possible. I don't know which ratios. You need to explain if blue eyes are recessive, I assume they are.
With that many heterozygous options, both the dominant and recessive traits would be plentiful