TLS Online TPP Program

#Question id: 19031


which of the following is not evidence that charophytes are the closest algal relatives of plants?

#Unit 9. Diversity of Life Forms
  1. Similar sperm structure 
  2. Similarities in chloroplast shape 
  3. Similarities in cell wall formation during cell division 
  4. Genetic similarities in chloroplasts
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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: 32282

#Unit 2. Cellular Organization

The ligand for calnexin and calreticulin, which resembles the N-linked oligosaccharide precursor but has;

TLS Online TPP Program

#Question id: 23567

#Unit 8. Inheritance Biology

Telomeric staining specifically detected by_____

TLS Online TPP Program

#Question id: 29446

#Unit 6. System Physiology – Plant

The binding of Nod factors to the Nod factor receptors (NFRs), which contain

TLS Online TPP Program

#Question id: 7220

#Unit 5. Developmental Biology

The anterior-posterior polarity of the drosophila embryo is established while the oocyte is still in the egg chamber, and it involves interactions between the developing egg cell and the follicular cells that enclose it. Following are certain statements:

A. The gurken message appears to be synthesized in the oocyte, and it is transported into the nurse cells. Here it becomes localized between the nucleus of nurse cells and the cell membrane, and it is translated into Gurken protein.

B. Gurken signal is received by the follicle cells at that position through a receptor protein encoded by the torpedo gene.

C. This signal results in the “posterior -anteriorization” of these follicle cells.

D. Posterior follicle cells signals to recruit Par-1 protein organizes microtubules specifically with their minus (cap) and plus (growing) ends at the anterior and posterior ends of the oocyte, respectively.

E. The motor protein kinesin, is an ATPase that will use the energy of ATP to transport material to the plus end of the microtubule. Dynein, however, is a “minus-directed” motor protein that transports its cargo in opposite direction.

F. These zygotic messengers bicoid and nanos mRNAs are carried by motor proteins along the microtubules to the anterior and posterior ends of the oocyte, respectively.

Which combination of the above statements are correct?