TLS Online TPP Program

#Question id: 20301


Which adrenal medullary enzyme converts Norepinephrine to Epinephrine: 

#Unit 7. System Physiology – Animal
  1. Tyrosine hydroxylase 
  2. Nuclease 
  3. Phenylethanolamine N-methyltransferase (PNMT) 
  4. Phenylalanine hydroxylase.
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TLS Online TPP Program

#Question id: 7199

#Unit 5. Developmental Biology

Following statements are regarding to the establishment of ventral axis in Drosophila.

A. Ventral follicle cells synthesize Pipe. Pipe signal sulfates ventral vitelline proteins.

B. GD cleaves Snake to its active form and forms a complex with Snake and uncleaved Easter proteins.

C. Sulfated vitelline membrane proteins bind Gastrulation-defective (GD).

D. Easter protein is cleaved into its active form. Cleaved Easter binds to and cleaves Spätzle; activated Spätzle binds to Toll receptor protein.

E. Dorsal protein enters the nucleus and ventralizes the cell.

F. Toll activation activates Tube and Pelle, which phosphorylate the Cactus protein. Cactus is degraded, releasing it from Dorsal.

Which of the following is the correct sequence?

TLS Online TPP Program

#Question id: 23733

#Unit 8. Inheritance Biology

Phenotypic variation is analyzed for milk production in a herd of dairy cattle and the following variance components are obtained: Additive genetic variance= 0.4, Dominance genetic variance= 0.1, Genic interaction variance= 0.2, Environmental variance= 0.5, Genetic−environmental interaction variance= 0.0,  the heritability (H2) of milk production is___

TLS Online TPP Program

#Question id: 4513

#Unit 3. Fundamental Processes

Different snRNPs recognize the same (or overlapping) sequences in the pre-mRNA at different stages of the splicing reaction, which two snRNPs recognizing the 5’ splice site

TLS Online TPP Program

#Question id: 32400

#Unit 1. Molecules and their Interaction Relevant to Biology

Pyruvate dehydrogenase kinase is


TLS Online TPP Program

#Question id: 19293

#Unit 13. Methods in Biology

Choose the incorrect statement for the preparation of genomic libraries.