TLS Online TPP Program

#Question id: 10990


Sympathetic stimulation of the heart normally causes which of the following conditions?

#Unit 7. System Physiology – Animal
  1. Acetylcholine release at the sympathetic endings
  2. Decreased heart rate
  3. Decreased force of contraction of the atria
  4. Increased force of contraction of the ventricles
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TLS Online TPP Program

#Question id: 18645

#Unit 13. Methods in Biology

SDS PAGE separate molecules by size because the presence of SDS (sodium dodecyl sulphate) denatures the protein removing 2˚, 3˚ and 4˚ structures (they assume a linear chain) and the SDS coats the molecules giving them a uniform charge/mass ratio. In an experiment (SDS-PAGE) with a discontinuous buffer system following band pattern is obtained 

   
Choose the correct statement regarding this band pattern

TLS Online TPP Program

#Question id: 28965

#Unit 7. System Physiology – Animal

Which of the following activity of TSH(thyrotropin) is incorrect?

TLS Online TPP Program

#Question id: 2913

#Unit 2. Cellular Organization

Genome size (the length of DNA associated with one haploid complement of chromosomes) varies substantially between different organisms. Because more genes are required to direct the formation of more complex organisms, it is not surprising that genome size is roughly correlated with an organism’s apparent complexity. Which of the following statements is/are correct in reference to this rough correlation?

I. Many organisms of apparently similar complexities have very different genome sizes.

II. The number of genes, rather than genome size, is more closely related to organism complexity.

III. There is a roughly inverse correlation between organism complexity and gene density—the less complex the organism, the higher the gene density.

IV. Gene density in eukaryotic organisms is consistently higher and more variable than in their prokaryotic counterparts.

TLS Online TPP Program

#Question id: 4979

#Unit 11. Evolution and Behavior

The dicynodonts that survived the Permian extinction would initially have had to endure (or escape from) the physical effects of __________, and subsequently, the biological effects of __________.

TLS Online TPP Program

#Question id: 23206

#Unit 13. Methods in Biology

What does secondary electrons stands for during laser beam being applied.