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Flashcards in Quiz 6 Deck (9)
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1

What is non-random mating?

sexual selection

2

What is inbreeding depression?

a decline in average fitness due to increase homozygosity

3

How does homozygosity decrease fitness?

there are many recessive alleles

4

What is sexual selection?

a type of natural selection that favors individuals who have a combination of heritable traits that are most useful in obtaining a mate

5

What is sexual dimorphism?

when males are physically distinct from females

6

What is the bateman-trivers theory?

"eggs are expensive, sperm are cheap"

7

What is "asymmetry of sex"?

females invest a lot in each offspring, males dont

8

What is male-to-male competition?

relies on physical beauty, parenting skills, and strength

9

In what situation will males compete with each other for mates?

when there are equal numbers of males and females in a population