Following securin degradation and a decrease in mitotic CDK activity, separase cleaves the Scc1 subunit, breaking the cohesin circles.

TLS Online TPP Program

#Id: 9564

#XL - T Zoology

Bergmann’s rule: Populations in colder climates tend to have greater body mass than those in warmer climates.

TLS Online TPP Program

#Id: 9565

#XL - T Zoology

Haldane’s rule: Hybrid sterility or hybrid inviability is often limited to the heterogametic sex. 

TLS Online TPP Program

#Id: 9566

#XL - T Zoology

Hamilton’s rule:  It states that an allele that causes an altruistic behavior will spread if the following condition is met (rb>C)

TLS Online TPP Program

#Id: 9567

#XL - T Zoology

Cope’s rule:  A proposed generalization that individual body size in animals tends to increase during evolution.

TLS Online TPP Program

#Id: 9568

#XL - T Zoology

Hitchhiking: Change in the frequency of an allele due to linkage with a selected allele at another locus.

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.