Many reptile groups initiate gastrulation by migration through an amphibian- like blastopore, avian and mammalian gastrulation takes place through the:

TLS Online TPP Program

#Question id: 1264

#Unit 4. Cell Communication and Cell Signaling

 Desmosomes

TLS Online TPP Program

#Question id: 1265

#Unit 4. Cell Communication and Cell Signaling

An example of an integrin containing cell junction is

TLS Online TPP Program

#Question id: 1266

#Unit 4. Cell Communication and Cell Signaling

Integrins

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#Question id: 1267

#Unit 4. Cell Communication and Cell Signaling

Multiple integrin forms arise from

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#Question id: 1268

#Unit 4. Cell Communication and Cell Signaling

The collagen triple-helix domain

a. is rich in glycine.                             b. is rich in proline.

c. is rich in hydroxyproline.                d. is an alpha helix.

TLS Online TPP Program

#Question id: 1270

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a major extracellular molecule in mammals containing no protein portion?