Wnt inhibitors secreted by the organizer are Dickkopf, Cerberus, Frzb & IGF

TLS Online TPP Program

#Id: 7609

#Unit 5. Developmental Biology

Slow Block to polyspermy

When the cortical granules fuse with the egg cell membrane, they release protein-digesting enzymes that modify the zona pellucida proteins such that they can no longer bind sperm

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#Id: 10001

#Unit 4. Cell Communication and Cell Signaling

Vertebrates have three homologues of the Drosophila hedgehog gene: sonic hedgehog (shh), desert hedgehog

(dhh), and indian hedgehog (ihh)

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#Id: 3146

#Unit 7. System Physiology – Animal

Residual volume normal volume averages about 1200 mL

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#Id: 8243

#Unit 10. Ecological Principles

Random dispersions are not common in nature, largely because abiotic conditions, resources, and interactions with other species are not randomly distributed

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#Id: 6450

#Unit 8. Inheritance Biology

A Lod score of 3 represents a Recombination Frequency (RF) that is 

3 times as likely as the hypothesis of no linkage. 

30 times as likely as the hypothesis of no linkage. 

100 times as likely as the hypothesis of no linkage. 

I000 times as likely as the hypothesis of no linkage.