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TLS Online TPP Program

#Question id: 4313

Which of the following statements best describes the characteristics of siRNA?

#Unit 3. Fundamental Processes

  1. a double-stranded RNA, one of whose strands can complement and inactivate a sequence of mRNA

  2. a single-stranded RNA that can, where it has internal complementary base pairs, fold into cloverleaf patterns

  3. a double-stranded RNA that is formed by cleavage of hairpin loops in a larger precursor

  4. a portion of rRNA that allows it to bind to several ribosomal proteins in forming large or small subunits

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TLS Online TPP Program

#Question id: 28995

#Unit 7. System Physiology – Animal

insulin- containing secretory vesicles fused with the plasma membrane and the secretion of insulin is mediated by____
TLS Online TPP Program

#Question id: 28255

#Unit 5. Developmental Biology

Which of the following structure of egg homologous to the acrosomal vesicle of the sperm?
TLS Online TPP Program

#Question id: 1128

#Unit 4. Cell Communication and Cell Signaling

During the epinephrine stimulated conversion of glycogen to glucose 1-phosphate, which of the following steps involves protein phosphorylation?

a. inactivation of glycogen synthase               b. activation of protein kinase A

c. activation of adenylyl cyclise                      d. activation of glycogen phosphorylase
TLS Online TPP Program

#Question id: 28729

#Unit 2. Cellular Organization

KDEL receptor and other membrane proteins that are transported Golgi to ER contain ___
TLS Online TPP Program

#Question id: 547

#Unit 1. Molecules and their Interaction Relevant to Biology

The role of an enzyme in an enzyme-catalyzed reaction is to: