Practice Questions

TLS Online TPP Program

#Question id: 32228

Which of the following statements are INCORRECT regarding coated vesicle and vesicle transport?

#Unit 2. Cellular Organization

A clathrin molecule, is composed of three heavy and three light chains.
Adapter proteins determine which cargo proteins are specifically included in a budding transport vesicle by binding to the luminal of membrane proteins.
Proteins bearing YXXΦ sorting signal are recruited into clathrin/AP1- coated vesicles budding from the TGN.
Vesicles coated with GGA proteins and clathrin bind cargo molecules with sorting sequences Asp-Phe-Gly-X-Φ.

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TLS Online TPP Program

#Question id: 691

#Unit 1. Molecules and their Interaction Relevant to Biology

Roughly how many amino acids are there in one turn of an alpha helix?

TLS Online TPP Program

#Question id: 61

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following correctly describes chemical equilibrium?

TLS Online TPP Program

#Question id: 34145

#Unit 7. System Physiology – Animal

I. The short arm of human chromosome 17 contains the growth hormone-hCS cluster.

II. Growth hormone increases circulating IGF-I, which in turn exerts a direct inhibitory action on growth hormone secretion from the pituitary.

III. Growth hormone secretion is decreased in persons deprived of rapid eye movement (REM) sleep.

IV. Growth hormone secretion is induced by thyroid hormones & inhibited, by cortisol.

TLS Online TPP Program

#Question id: 19477

#Unit 12. Applied Biology

Cry V and Cry VI groups were added; these proteins are primarily

TLS Online TPP Program

#Question id: 12574

#Unit 10. Ecological Principles

According to the small- population approach, what would be the best strategy for saving a population that is in an extinction vortex?