A 33-year-old factory worker was pinned between two pieces of machinery. When you arrive at the scene, you find him lying supine on the ground complaining of severe pain to his pelvis.
He is restless, diaphoretic, and tachycardia. After performing a rapid head-to-toe assessment, you should:

A) carefully log roll him to check his back.
B) palpate his pelvis to assess for crepitus.
C) perform a detailed secondary exam.
D) prepare for immediate transport.

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait. 

Where's the picture of the model?