Relationships

Question 1

What is sexual selection?

Answer 1

Genes selected based on successful reproduction

Question 2

What is anisogamy

Answer 2

Male gametes are produced in large numbers, female gametes are relatively rare. This gives rise to two mating strategies.

Question 3

What is inter-sexual selection?

Answer 3

Between the sexes.
Females invest more in offspring so choosy. Choice determines features passed on like height, runaway process/sexy son hypothesis

Question 4

What is intra-sexual selection

Answer 4

Within the sexes.
Male strategy that seeks quantity. Males seek signs of fertility to pass on ‘victorious’ genes.

Question 5

Evaluation for partner preferences

Answer 5

Research support for inter-sexual selection - 75% men agreed to sexual request from women. 0% women agreed to men’s.
Counterpoint - sexual selection simplistic, make/female similar when seeking LT relationships.
Research support for intra-sexual selection - 10,000 adults questioned in 33 countries, men seek signs of reproductive capacity, women want resources.
Social and cultural influences - rapid changes due to changing social norms.