Cell walls of prokaryotes, fungi, algae, and plants differ from each other in chemical composition and molecular structure, yet they all serve three common functions:

a) regulating cell volume

b) determining cell shape

c) mechanically protecting the delicate protoplast against biochemical and physical assaults

d) used to make synthetic fibers

Which of the following common functions is correct?

TLS Online TPP Program

#Question id: 26511

#Unit 3. Fundamental Processes

There are two classes of snoRNPs involved in rRNA processing in nucleolus, so choose which of the following is correctly matched with their function 

a.The box H/ACA snoRNPs are involved in 2-O-methylations

b.The box H/ACA snoRNPs are involved in pseudouridylylation

c.The box C/D snoRNPs function in 2-O-methylations

d.The box C/D snoRNPs function in pseudouridylylation

TLS Online TPP Program

#Question id: 10844

#Unit 10. Ecological Principles

In the formula for biotic potential (dN/dt = rIN), what does n stand for?

TLS Online TPP Program

#Question id: 1649

#Unit 4. Cell Communication and Cell Signaling

Which of the following gene clusters do NOT contribute to antigen binding?

TLS Online TPP Program

#Question id: 218

#Unit 1. Molecules and their Interaction Relevant to Biology

We use the term tetrahydrofolate to designate a family of related compounds. What is the main difference between members of this family?

TLS Online TPP Program

#Question id: 19358

#Unit 13. Methods in Biology

What are PACs?