Most mutations are harmful, for example …show more content… As females can only produce a few eggs, and one child a year for about twenty-five years, females have to be very careful and make the right selection with their choice because their egg is so much more valuable.
Will you go to bed with me tonight? There are two types of sexual selection. For example, men do marry younger women.
Evolutionary theory is one such theory. Natural selection also encourages females to seek males who display genetic fitness- strength, status and resources.
These built-in preferences are important because the genetic quality of your mate will be responsible for half the genetic quality of your offspring, therefore a high-quality choice of mate is likely to lead to your genes being passed on.
In conclusion, although this theory provides an adequate explanation of human reproductive behaviour with many supporting research such as Buss this theory can also be described as deterministic a it states that all men and woman possess these characteristics.
For example, a physically stronger and larger male will be able to fight off his competitors for access to the female, so he will produce physically stronger sons.
Intra-sexual selection is the competition within mates, usually males, to ensure that there are successful in passing on their genes for example, today this may involve men competing for a higher paid job in order to be resourceful to women.