Sexual dimorphism can evolve when selection favors the expression of a trait to be different in males and females. 

This situation is called sexually antagonistic selection, because an increase in the trait’s expression benefits one sex but harms the other.

TLS Online TPP Program

#Id: 8988

#XL - T Zoology

TLS Online TPP Program

#Id: 8989

#XL - T Zoology

Allele frequency when genotype frequency is given

TLS Online TPP Program

#Id: 8990

#XL - T Zoology

Adaptive introgression

When the incorporation of a foreign variant leads to an increase of the fitness of the recipient pool.

TLS Online TPP Program

#Id: 8991

#XL - T Zoology

Incomplete lineage sorting (hemiplasy)

If you make a phylogenetic tree of how the alleles are related to each other, it does not mirror how the species split apart.

TLS Online TPP Program

#Id: 9146

#XL - T Zoology

Effects of different evolutionary forces on allelic frequencies

TLS Online TPP Program

#Id: 9147

#XL - T Zoology