Note: Our GAMSAT practice questions change every midnight AEST. You may browse our questions up to three days in the past and up to the next 3 days. You may also click the "Random" button should you wish to test yourself with any question from Section 1, Section 2 or Section 3.



Gold Standard GAMSAT Question of the Day: Biology

The autosomal dominant gene Curly (CY) of the fruit fly Drosophila melanogaster gives rise to adult flies with abnormal wings that curl up when the pupae are maintained at 25 oC but remain uncurled when the pupae are kept at 19 oC. Consider the F1 generation of a cross between two flies heterozygous for curly wings. What will be the percentage of F1 flies with normal (uncurled) wings when the pupae are maintained at either 19o or 25o?

A. 25% uncurled at 19o; 75% uncurled at 25o
B. 75% uncurled at 19o; 25% uncurled at 25o
C. 100% uncurled at 19o; 25% uncurled at 25o
D. 100% uncurled at 19o; 75% uncurled at 25o