Which mating of four-o'clock plants would produce progeny that were either green,variegated,or white if the color variation is due to a mutation in a chloroplast gene?
A) green female x variegated male
B) variegated female x green male
C) white female x white male
D) white female x green male

Question

Quizplus · Accepted Answer

If the color variation is due to a mutation in a chloroplast gene, then it is inherited maternally since the chloroplasts are usually inherited from the ovule. Therefore, the best option would be to have a variegated female plant (indicating that the chloroplasts have the mutation) and a green male plant (without the mutation) in order to have a chance of producing offspring with either green or variegated leaves (depending on the degree of dominance of the mutation).

Which Mating of Four-O'clock Plants Would Produce Progeny That Were