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TLS Online TPP Program

#Question id: 1381

Match each definition with given terms

1. Large family of structurally related, secreted, dimeric proteins that act as hormones and local mediators to control a wide range of biological functions in all animals.

A. Rho

2. Cell-surface receptor in which the cytoplasmic domain either has enzymatic activity itself or is associated with an intracellular enzyme.

B. TOR pathway

3. A crucial signaling protein in the PI-3-kinase–Akt signaling pathway, so named because it is the target of rapamycin.

C. Enzyme-coupled receptor

4. A kinase that is involved in intracellular signaling pathways activated by cell-surface receptors and that phosphorylates inositol phospholipids at the 3 position of the inositol ring.

D. Phosphoinositide 3-kinase

5. A group of monomeric GTPases that regulate both the actin and microtubule cytoskeletons.

E. (TGFβ) superfamily

6. Cytoplasmic tyrosine kinase present at cell–matrix junctions in association with the cytoplasmic tails of integrins.

F. Focal Adhesion Kinase

#Unit 4. Cell Communication and Cell Signaling

  1. 1E, 2C, 3B, 4D, 5A, 6F   

  2. 1A, 2C, 3B, 4D, 5E, 6F

  3. 1A, 2B, 3C, 4D, 5E, 6F 

  4. 1A, 2F, 3D, 4B, 5E, 6C

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TLS Online TPP Program

#Question id: 6969

#Unit 5. Developmental Biology

In Xenopus, the elongation of the mesoderm toward the anterior results from the intercalation of cells during a process called:
TLS Online TPP Program

#Question id: 4901

#Unit 8. Inheritance Biology

Assume that the alleles A (dominant) and a (recessive) show a maternal effect mode of inheritance. In a cross between an Aa female and an aa male, what would be the phenotypes of the progeny?
TLS Online TPP Program

#Question id: 739

#Unit 1. Molecules and their Interaction Relevant to Biology

What is true about the rotation about bonds in a protein backbone?
TLS Online TPP Program

#Question id: 5654

#Unit 5. Developmental Biology

Two human disorders, Prader-Willi syndrome and Angelman syndrome, occur when a small deletion in a specific region of chromosome 15 is contributed by either the father or mother, respectively. Why does this small deletion not behave as a recessive allele for either syndrome, that is, why is its loss not made up for by the good copy of the region on chromosome 15 contributed by the other parent?
TLS Online TPP Program

#Question id: 11015

#Unit 7. System Physiology – Animal

A 65-year-old man had an EKG recorded at a local emergency room following a biking accident. His weight was 80 kg and his aortic blood pressure was 160/90 mm Hg. The QRS voltage was 0.5 mV in lead I and 1.5 mV in lead III. What is the QRS voltage in lead II