Homework Help: punnett squares

Posted by alison on Sunday, December 20, 2009 at 6:07pm.

how would i make a punnet square to find the offspring of parents:
SsYy x ssyy

I dont understand what i would put for each of the boxes on the outside

punnett squares - bobpursley, Sunday, December 20, 2009 at 6:13pm
SY
Sy
sY
sy
across the top
sy sy sy sy
punnett squares - Damon, Sunday, December 20, 2009 at 6:24pm
one parent is Ss Yy
so put those two across the top
-- Ss Yy

ss

yy
punnett squares - Priscilla, Sunday, December 20, 2009 at 8:00pm
SY
Sy
sY
sy
across the top and bottom.

Wouldn't the top be the same as the bottom? According to this genotype, the ratio will be 1:1:1:1

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