I need help with the punnett square, recessive and dominate genes.

Question

http://en.wikipedia.org/wiki/Dominance_relationship

okay where you see the Pp Pp = PP Pp Pp pp

and i know PP pp = Pp Pp Pp Pp

what would the results be if this happened, lets say a Pp mixed with a pp

would the results come out like this?

Pp pp= pp pp pp Pp

Or something else?

like Pp Pp pp pp because of the dominant thing?

I would think it would be pp pp pp Pp

but maybe not, and seeing recessive genes can pop up many generations later I doubt it would be that easy to get rid of them, meaning they would continue to stay attached.

and what about Pp PP would that equal PP PP PP Pp?

or would it be Pp Pp PP PP?

I'm trying to find out somethings about some things.

Answer 1

Pp X pp would give you  Pp pp Pp pp

Half appear as the dominant phenotype (and are carriers of the recessive gene).

Half appear as the the recessive phenotype (and have only the recessive gene)

Pp X PP would give you PP PP Pp Pp  

All appear as the dominant phenotype,  but half have the recessive gene and thus are carriers, and half do not carry the recessive gene.

Answer 2

If a pp mixed with Pp it would be Pp Pp pp pp

Pp PP would be PP Pp PP Pp

If you have problems you can draw it out yourself. In the form.

In that link to the picture may be self explanatory, but you treat it as a chart and in the square put the two letters (one that appears at the top and the other that appears to the left) in that square. If you have any problems understanding that IM me and I'll try to explain it better.

Answer 3

Pp PP= PP PP Pp Pp

Pp pp= pp pp Pp Pp

and its is hard to get rid of recessive genes

Answer 4

1.  Pp x pp = pp pp Pp Pp

2.  Pp x PP = Pp Pp PP PP

Answer 5

Pp pp would come out half and half...its just cross multiplication so Pp Pp pp pp...and yes Pp PP would come out as PP PP PP Pp

Answer 6

Geez it would help if you explained it a bit clearly

Yes it is Pb, pp,pp,pp

So genotypes would be 3/4 pp= recessive

                                    1/4 Pp= Dominant since P is dominant