[Keedeon]

A number of flower species change colour when nectar is no longer available; for example, some lantana flowers turn from yellow to red. A pollinator, such as a butterfly, learns not to waste time on such blossoms.


If a mutation causes the colour of a flower to change once nectar is no longer available, the frequency of the mutated allele will
A. increase if the flowers are bright colour when nectar is available
B. decrease if the flowers are a bright colour when nectar is available
C. increase if the flowers have an increased chance of successful pollination
D. decrease if the flowers have an increased chance of successful pollination

[LSD]

C
If the flower with the mutated allele is successfully pollinated, it is more likely to pass this mutated allele on to the next generation hence increasing its frequency.