Question

In pumpkins, orange color (G) is incompletely dominant to white (g); the Gg heterozygotes are yellow. An orange pumpkin is crossed with a white pumpkin. Determine the phenotypes of progeny of a cross of the F1 to the orange parent

Select one:

a. 1 yellow: 1 orange
b. 1 yellow: 1 white

c. 2 yellow: 1 orange: 1 white

d. all yellow

Answer 1

Orange	GG
White	gg
Yellow	Gg

• Orange pumpkin is crossed with a white pumpkin

orange pumpkin- GG

white pumpkin-gg

	G	G
g	Gg	Gg
g	Gg	Gg

• Determine the phenotypes of the eny of a cross of the F1 to the orange parent

F1 - Gg

orange pumpkin- GG

	G	G
G	GG	GG
g	Gg	Gg

GG:Gg- 1:1- Orange: yellow

answer- a. 1 yellow: 1 orange

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