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: 7281

#Unit 5. Developmental Biology

Evolutionary conservation of homeotic gene organization and transcriptional expression in fruit flies and mice is seen in the similarity between the Hom-C cluster on Drosophila chromosome 3 and the four Hox gene clusters in the mouse genome.

 

According to this figure, Which of the following statement is correct?

TLS Online TPP Program

#Question id: 7282

#Unit 5. Developmental Biology

In humans, neural tube closure defects occur in about 1 in every 1000 live births. Failure to close the neural tube can result from both genetic and environmental causes. A recent report has demonstrated that zinc deficiency disrupts neural tube closure by:

TLS Online TPP Program

#Question id: 7283

#Unit 5. Developmental Biology

The Drosophila orthodenticle gene and the vertebrate Otx genes are homologous and provide a good example of the conservation of gene function during evolution. Which of the following statement is correct regarding to the expression of gene expression.

TLS Online TPP Program

#Question id: 7284

#Unit 5. Developmental Biology

Choose the correct match.

GenesAxis polarity
a. Maternal deficiency of gurkeni. Posteriorization of follicle cells
b. Maternal deficiency of torpedoii. Ventralization of embryo
c. Maternal deficiency of tolliii. Dorsalization of embryo
iv. No anterior posterior axis

TLS Online TPP Program

#Question id: 7285

#Unit 5. Developmental Biology

During xenopus gastrulation, C3a functions as a short-range chemoattractant to guide the radial intercalation movements of cells. If Knockdown of C3a with antisense morpholinos results:

TLS Online TPP Program

#Question id: 7286

#Unit 5. Developmental Biology

Which of the floral whorls is affected in apetala 3/pistillata (ap3/pi) mutants?