Question

In what ratio would you find the genotype GG and Gg in the F2 progeny.??
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Answer 1

EXPLANATION:

iii) In what ratio would you find the genotypes GG and Gg in the F2 progeny? (ii) 25% in F2 generation raised by self pollinated F1 plants. Thus, ratio is 1 : 2 in F2 progeny.

Answer 2

Answer:

Capital letters (in this case, G) indicate the dominant characteristic, whereas tiny letters indicate the recessive trait. (here g)

If an organism carries a dominant gene, that gene's expression will be dominant.

Explanation:

Capital letters (in this case, G) indicate the dominant characteristic, whereas tiny letters indicate the recessive trait. (here g)

If an organism carries a dominant gene, that gene's expression will be dominant.

Example: Even if the purple gene (g) is present, the character produced if the organism has the Gg gene will be green stem rather than purple stem. This occurs as a result of the dominant gene masking the recessive gene.

I In F1, all of the offspring would have green stems since they would be Gg.

ii) If F1 plants pollinate themselves,

Gg and Gg as parent

G g G g gametes

G

g

G

GG (Green)

Gg (Green)

g

Gg (Green)

gg (purple)

Gg:GG ratio = 1:2:1.

Capital letters (in this case, G) indicate the dominant characteristic, whereas tiny letters indicate the recessive trait. (here g)

If an organism carries a dominant gene, that gene's expression will be dominant.

Example: Even if the purple gene (g) is present, the character produced if the organism has the Gg gene will be green stem rather than purple stem. This occurs as a result of the dominant gene masking the recessive gene.

I In F1, all of the offspring would have green stems since they would be Gg.

ii) If F1 plants pollinate themselves,

Gg and Gg as parents

G g G g gametes

G

g

G

GG (Green)

Gg (Green)

g

Gg (Green)

gg (purple)

Gg:GG ratio = 1 : 2 : 1 .

percent of plants have purple stems = 2 5

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