The male deer fight for mates and the winner of the fights gets to breed with said females, the larger the antlers the more likely they will win also, the males that are strong are the ones the females want to breed with because their offspring have a bigger chance of survival.
Well I think I might know this since I was born and grew up in WI, but don't be 100% dependent with my answer because I'm only in 7th grade and I am doing high school stuff. Well my guess is the proportion of the genes is 1/2 because when a offspring is produced the genes are split from each parent rather its a human baby, a mammal, a fish, a reptile, a insect, or a plant. Although, I don't know what f1 means except for it being a control on the computer lol. But like I said I'm only in 7th grade so I don't know everything but I'm smarter than a average 7th grader.
Hope this helps! (it probably wont though)
Explanation:
A simple food chain is:
algae → mosquito larvae → herons → trout > minnows
