In the urea cycle the nitrogen atoms originate from ________.

TLS Online TPP Program

#Question id: 29452

#Unit 6. System Physiology – Plant

Auxins in biological samples can be determined by

a. bioassay

b. mass spectrometry

c. enzyme-linked immunosorbent assay 

d. The Avena coleoptile curvature assay

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#Question id: 18995

#Unit 13. Methods in Biology

Which of the following is not a characteristic of the syringe pump used in high pressure liquid chromatography?

TLS Online TPP Program

#Question id: 26959

#Unit 10. Ecological Principles

In the quadrat methods, given R= (mean distance) X 2 √density, Define the correct pattern of spacing with respect to R?

a.R is equal to 1, then the population is randomly dispersed

b.R is greater than 1, then the population is evenly dispersed

c.R is less than 1, then the population is clumped

d.R is equal to 1, then the population is evenly dispersed

e.R is greater than 1, then the population is randomly dispersed

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#Question id: 13011

#Unit 10. Ecological Principles

Based on current growth rates, Earth's human population in 2010 will be closest to

TLS Online TPP Program

#Question id: 22939

#Unit 5. Developmental Biology

CO gene expression appears to be highest in the companion cells of the phloem of leaves and stems, the downstream target gene of CONSTANS is