What would the punnett square look like for pairs BbS1S2 X BbS1S2?

Question

The trait for fur is co-dominate. Bb

Answer 1

Across the top of the grid, you'll have four gametes: BS1, BS2, bS1 and bS2. You'll have those same four gametes down the side, so your grid will have 16 squares inside of it. There should be an example in your book of something like AaBb X AaBb showing a Punnett square. Yours should look pretty much like that one.

Answer 2

i think only 2 types of gametes will b formed!
u cant neglect any chromosome as in 1st answer!
so gametes will be Bs1s2 & bs1s2
so its like square of monohybride cross!