The GTP that is bound to α-tubulin is physically trapped at the dimer interface and is never hydrolyzed.

TLS Online TPP Program

#Id: 2362

#Unit 5. Developmental Biology

Zeta and Sigma neoblasts are morphologically indistinguishable, but they express different gene regulatory networks.

TLS Online TPP Program

#Id: 2308

#Unit 3. Fundamental Processes

Sigma factor contacts the promoter directly at both the -35 and -10 consensus sequences was provided by substitutions in the sigma factor that suppressed mutations in the consensus sequences.

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#Id: 9197

#Unit 11. Evolution and Behavior

Stabilized natural selection

Favor intermediate phenotype but eliminate lower and higher-grade phenotype

It introduced homogeneity in the population

Exp - clutch size of birds that lay too many or too few eggs per nest have lower fitness values than do those that lay an intermediate number of eggs

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#Id: 2545

#Unit 13. Methods in Biology

Efficiency of PCR is affected by primer length; it declines if the primers used for PCR arc too long.

TLS Online TPP Program

#Id: 5260

#Unit 7. System Physiology – Animal

Myocardial fibers have a resting membrane potential of approximately –90 mV.