TLS Online TPP Program

#Id: 9569

#XL - T Zoology

Dollo’s law:  A biological generalization positing that complex characters, once lost in evolution, are extremely unlikely to reappear and thus the loss of complex characters is virtually always irreversible.

TLS Online TPP Program

#Id: 1962

#XL - T Zoology

A life table provides data on the number of individuals alive in different age classes and the age-specific survival or mortality rates in these age classes.

TLS Online TPP Program

#Id: 8106

#XL - Q Biochemistry

Galactolipids are localized in the thylakoid membranes (internal membranes) of chloroplasts; they make up 70% to 80% of the total membrane lipids of a vascular plant, and are therefore probably the most abundant membrane lipids in the biosphere. 

TLS Online TPP Program

#Id: 9986

#XL - T Zoology

Non-canonical Wnt signaling is initiated by the 

Wnt5a type (Wnt4, Wnt5a, Wnt5b, Wnt6, Wnt7a, and Wnt11).

 

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.