In a certain seed color can be yellow or green. Seed shape can be smooth of wrin
ID: 8972 • Letter: I
Question
In a certain seed color can be yellow or green. Seed shape can be smooth of wrinkled. Complete the Punnett Square for the cross between two plants that are heterozygous for seed color and seed shape. Both parents are smooth and green. Determine the phenotypic ratio for the offspring.
Parental Phenotypes: X
Parental Genotypes: X
Parental Gametes: X
Phenotypic ratio:
Smooth/green:
Wrinkled/green:
Smooth/yellow:
Wrinkled/yellow:
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(sorry for the poorly made punnett square diagram, if it were in exel, the first box, would be A1 and would not be there, picture a 5 by five punnett square but the upper left hand corner box is not there, leading me to believe that all in column and row one are titles)
Explanation / Answer
The parents are smooth and green
smooth - WW, wrinkled - ww, yellow -YY, green - yy
WWyy x WWyy
Progeny are - WWyy - all are smooth and green
But it is given that parents are heterozygous in nature.
smooth - WW, Ww, wrinkled - ww, yellow -YY, green - Yy, yy
WwYy x WwYy
Progeny-
WY Wy wY wy
WY WWYY WWYy WwYY WwYy
Wy WWYy WWyy WwYy Wwyy
wY WwYY WwYy wwYY wwYy
wy WwYy Wwyy wwYy wwyy
Phenotypic ratio =
Smooth, yellow- 3
Smooth, green - 9
wrinkled, yellow - 1
wrinkled, green - 3