Which two genera have members that can evade the human immune system by frequently changing their surface proteins?

1.  Plasmodium

2.  Trichomonas

3.  Paramecium

4.  Trypanosoma

5.  Entamoeba

TLS Online TPP Program

#Question id: 1474

#Unit 4. Cell Communication and Cell Signaling

Early observations of a cultured cell line indicated that the cells did not exhibit either density-dependent inhibition or anchorage dependence. What do these observations suggest about this cell line?

TLS Online TPP Program

#Question id: 1475

#Unit 4. Cell Communication and Cell Signaling

Which of the following protein in C.elegans homolog of the human Bcl-2 protein?

TLS Online TPP Program

#Question id: 1476

#Unit 4. Cell Communication and Cell Signaling

Which of the following are killer proteins required for cell death?

TLS Online TPP Program

#Question id: 1477

#Unit 4. Cell Communication and Cell Signaling

The effector proteases in the apoptotic pathway, the caspases, are so named because

TLS Online TPP Program

#Question id: 1478

#Unit 4. Cell Communication and Cell Signaling

Caspases are different on the basis of:

TLS Online TPP Program

#Question id: 1479

#Unit 4. Cell Communication and Cell Signaling

The multi-spanning, ubiquitously expressed C. elegans plasma membrane protein CED-8 and its mammalian homolog Xkr-8 are required for-