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TLS Online TPP Program

#Question id: 31389

In modern cancer therapy, small-molecule anticancer drugs are designed to inhibit the products of specific cancer-critical genes. If you were searching for such molecules, you design inhibitors for the products of:

#Unit 4. Cell Communication and Cell Signaling
  1. Oncogenes, because their products promote uncontrolled cell growth 
  2. Tumor suppressor genes, because their products prevent cancer
  3. Both oncogenes and tumor suppressor genes, as they have equal roles in cancer
  4. Neither, because cancer is primarily caused by environmental factors
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TLS Online TPP Program

#Question id: 20334

#Unit 4. Cell Communication and Cell Signaling

Sulfotransferases are the first enzymes of the core sulfation pathways, they transfer sulfate from PAPS to the hydroxyl or amino group of a wide variety of acceptors, as given below
a. Molecular basis of symbiotic host specificity in Rhizobium meliloti: nodH and nodPQ genes encode the sulfation of lipochito-oligosaccharide signals
b. Sulfation of the choriogonadotropin alpha subunit in human placental explants
c. Tyrosine sulfation of the amino terminus of CCR5 facilitates HIV-1 entry
d. A tyrosine-sulfated peptide based on the N terminus of CCR5 interacts with a CD4-enhanced epitope of the HIV-1 gp120 envelope glycoprotein and inhibits HIV-1 entry.
e. The Xanthomonas oryzae pv. oryzae raxP and raxQ genes encode an ATP sulfurylase and APS kinase that are required for AvrXa21 avirulence.
Which one of the following combination of above statements is correct?
TLS Online TPP Program

#Question id: 20335

#Unit 4. Cell Communication and Cell Signaling

Quorum sensing-mediates the social cooperation and conflict both-
TLS Online TPP Program

#Question id: 20336

#Unit 12. Applied Biology

Granule bound starch synthase I (GBSS l) is the main enzyme of amylose biosynthesis. Therefore ___________ activity of GBSS I is expected to increase the amylose content of starch
TLS Online TPP Program

#Question id: 20337

#Unit 12. Applied Biology

Granule bound starch synthase I (GBSS l) is the main enzyme of amylose biosynthesis. Therefore ___________ activity of GBSS I is expected to increase the amylose content of starch
TLS Online TPP Program

#Question id: 20338

#Unit 12. Applied Biology

Granule bound starch synthase I (GBSS l) is the main enzyme of amylose biosynthesis. Therefore ___________ activity of GBSS I is expected to increase the amylopectin content of starch
TLS Online TPP Program

#Question id: 20339

#Unit 12. Applied Biology

______________ is the main enzyme of amylopectin biosynthesis. Whose decreased activity is expected to increase the amylopectin content of starch?