Mechanisms of Egg Activation

TLS Online TPP Program

#Id: 9877

#Unit 4. Cell Communication and Cell Signaling

Chemical barriers at these surfaces include specialized soluble substances that possess antimicrobial activity as well as acid pH.

TLS Online TPP Program

#Id: 7331

#Unit 11. Evolution and Behavior

Assumptions—If a population is large, randomly mating, and not affected by  mutation, migration, or natural selection.

Prediction 1 —The allelic frequencies of a population do not change

Prediction 2- The genotypic frequencies stabilize after one  generation in the proportions p2, 2pq, and q2.

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#Id: 1870

#Unit 10. Ecological Principles

The strength of interspecific competition is greater between more closely related species or species in similar guilds.

TLS Online TPP Program

#Id: 7161

#Unit 5. Developmental Biology

The mechanism for “bottom-up” specification of germ layers of the frog embryo resides in a set of mRNAs that are tethered to the vegetal cortex

TLS Online TPP Program

#Id: 1078

#Unit 5. Developmental Biology

According to the Quartet Model, floral organ identity is regulated by tetrameric complexes of the ABCE proteins.