If R = red and r = white, what would be the result of a cross between a heterozygous female (red-eyed with one recessive allele) and a recessive male? A. 25% red-eyed female, 25% white-eyed female, 25% red-eyed male, 25% white-eyed male
B. 25% white-eyed male, 25% red-eyed male, 50% and red-eyed female offspring
C. 0% chance of white-eyed flies

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10