For a species of tropical plant, leaves with green veins (G) are dominant over leaves with red veins (g). A plant that has green veins (GG) is crossed with a plant with red veins (gg). What percentage of offspring will have red veins?

Question

25%

75%

0%

100%

GPT-4o mini · Answer

To determine the percentage of offspring that will have red veins from the cross between a plant with green veins (homozygous dominant, GG) and a plant with red veins (homozygous recessive, gg), we can set up a Punnett square.

The parent plants are:

Parent 1: GG (green veins)
Parent 2: gg (red veins)

When we perform the cross, we can represent the alleles from each parent:

     G   |   G
---------------
g |  Gg  |  Gg
g |  Gg  |  Gg

From the Punnett square, we see that all offspring (100%) will have the genotype Gg, which results in green veins since G (green) is dominant over g (red).

Therefore, the percentage of offspring that will have red veins is 0%.

The answer is: 0%.