The cell has the capacity to differentiate into particular kinds of cells and achieve specific cell fates, this process is known as____

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#Question id: 19840

#Unit 13. Methods in Biology

Match the following source of thermostable DNA polymerase with proofreading (3’−5’ exonuclease) activity;

DNA Polymerase	Sources
A- Tma	i) Pyrococcus furiosus
B- Deep VentTM	ii) Pyrococcus woesi
C- Tli	iii)  Thermotoga maritima
D- Pfu	iv) Pyrococcus sp.
E- Pwo	v) Thermococcus litoralis

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#Question id: 980

#Unit 1. Molecules and their Interaction Relevant to Biology

Which enzyme catalyzes the step in purine nucleotide biosynthesis that is the principal site of regulation for the pathway?

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#Question id: 12553

#Unit 10. Ecological Principles

Which of the following assumptions have to be made regarding the capture -recapture estimate of population size?

I. Marked and unmarked individuals have the same probability of being trapped.

II.    The marked individuals have thoroughly mixed with population after being marked.

III.  No individuals have entered or left the population by immigration or emigration, and no individuals have been added by birth or eliminated by death during the course of the estimate.

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#Question id: 20320

#Unit 4. Cell Communication and Cell Signaling

What processes controlled by quorum sensing-

a. Bioluminescence

b. Production of virulence factors 

c. Formation of biofilms

d. Competence for uptake of DNA

e. Antibiotic production

Which one of the following combinations of above statements is correct?

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#Question id: 4616

#Unit 11. Evolution and Behavior

Logically, which of these should cast the most doubt on the relationships depicted by an evolutionary tree?