The specific linkages between sugar rings, including the specific carbons that are linked together and the configuration of the linkage, are important for the properties of the polysaccharide;

 I) Amylose                             a)β(1,3)-linkages                                  

 II) Cellulose                            b) β (1,4)-linkages

  III) Callose                             c) α(1,4)-linked

                                                 d) α (1,3)-linkages

Which of the following linkage combination is correct linkages of the polysaccharides?

TLS Online TPP Program

#Question id: 1073

#Unit 4. Cell Communication and Cell Signaling

Prions

TLS Online TPP Program

#Question id: 1074

#Unit 4. Cell Communication and Cell Signaling

Viroids cause disease in

TLS Online TPP Program

#Question id: 1075

#Unit 4. Cell Communication and Cell Signaling

The clustered, regularly interspaced short palindromic repeats (CRISPR) system in bacterial cells has been called the “immune” system of bacteria. CRISPR protect bacteria from a repeat infection from the same phage because bacterial cells

TLS Online TPP Program

#Question id: 1076

#Unit 4. Cell Communication and Cell Signaling

Why are viroids resistant to nucleases?

TLS Online TPP Program

#Question id: 1077

#Unit 4. Cell Communication and Cell Signaling

Would ID50 and LD50 necessarily be the same for a given virus? Why or why not?

TLS Online TPP Program

#Question id: 1078

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements about interferon is incorrect?