Practice Questions

TLS Online TPP Program

#Question id: 5133

Identify the correct ligands in both receptor serine kinase pathway.

#Unit 5. Developmental Biology

Smads 2 and 3 are activated by the BMP family of TGF- β factors, whereas the receptors binding activin, Nodal, and the TGF- β family phosphorylate Smads 1 and 5.
Smads 1 and 5 are activated by the BMP family of TGF- β factors, whereas the receptors binding activin, Nodal, and the TGF- β family phosphorylate Smads 2 and 3.
Smads 1 and 5 are activated by the BMP family of TGF- β factors, whereas the receptors binding activin, Nodal, and the TGF- β family phosphorylate only smad 4.
Smads 4 are activated by the BMP family of TGF- β factors, whereas the receptors binding activin, Nodal, and the TGF- β family phosphorylate all smads 1,2,3,5.

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TLS Online TPP Program

#Question id: 2379

#Unit 2. Cellular Organization

Chloroplasts and mitochondria are good examples of the Endosymbiont Theory because

TLS Online TPP Program

#Question id: 12216

#Unit 7. System Physiology – Animal

Gastric emptying is regulated to ensure the chyme enters the duodenum at an appropriate rate. Which of the following factors promotes gastric emptying?

TLS Online TPP Program

#Question id: 7234

#Unit 5. Developmental Biology

Studies from the sea urchin developmental biology, Eric Davidson’s group envisions a network involving cis regulatory elements (such as promoters and enhancers) in a logic circuit connected to one another by transcription factors. Following statements are given regarding to this network.

A. The network receives its first inputs from transcription factors in the egg cytoplasm.

B. The network self-assembles from the ability of the maternal transcription factors to recognize cis-regulatory elements of particular genes that encode other transcription factors.

C. The new set of transcription factors activate autocrine signaling pathways that activate specific transcription factors in neighboring cells.

D. This network of interconnections among genes that specify cell types known as a gene regulatory network (GRN).

Which of the following statements are correct?

TLS Online TPP Program

#Question id: 27942

#Unit 1. Molecules and their Interaction Relevant to Biology

Glycolytic enzymes along with them their class is mentioned

(1) Phosphoglucoisomerase, Phosphotriose isomerase, Phosphoglycerate mutase belongs to Isomerases

(2) Hexokinase, Phosphofructokinase, Phosphoglycerate kinase, Pyruvate kinase belongs to Transferases

(3) Aldolase, Enolase belongs to Lysases

(4) Glyceraldehyde 3-phosphate dehydrogenase belongs to Oxidoreductases

Which of the following is correct