PNB 2XC3 Chapter Notes - Chapter 7: Japanese Quail, Fisherian Runaway, Gene Knockout
16 Dec 2017
School
Department
Course
Professor
Document Summary
Depends on the advantage which certain individuals have over other individuals of the same sex and species in exclusive relation to reproduction. Intrasexual selection: members of one sex compete with each other for access to the other sex. Intersexual selection: individuals of one sex choose which individuals of the other sex to take as mates. Differential reproductive success drives the process of natural selection therefore this topic is widely studied. Intrasexual selection- access to mating opportunities; is one key factor leading to differences in reproductive success. Typically males compete for females as mates and not vice versa. Difference is partially due to the different type and number of gametes produced by males (sperm) and females (eggs) Females produce fewer, but larger gametes; each egg is valuable both because of its size and its relative scarcity. Each sperm requires less energy to produce and there is a lot of it.
