Exact(1)
Quantitative imaging experiments of fluorescently labeled histones are indeed consistent with condensation proceeding in two distinct steps [ 84].
Similar(59)
In contrast, the Perkin condensation proceeds stereoselectively to afford CA-4 as the major product [18].
The hydrolytic condensations proceeded as a homogeneous system in acetone in the presence of aqueous HF solution (3.2%) at 30 °C.
As a result, the cell pressure decreases as condensation proceeds.
Second, as condensation proceeds, the anchor pulls the posterior germband and amnion deeper into the yolk.
The condensation reaction proceeded smoothly with β-ketoester and ammonium acetate in the presence of a catalytic amount of cadmium chloride at acetonitrile reflux to give the corresponding 1,4-dihydropyridine derivatives in very good yields.
Indeed, biochemical condensation reactions proceed with release of water, so that the presence of latter favors hydrolysis of biological polymers.
As nuclear condensation and elongation proceed, SPANX-A/D proteins migrate as a distinct post-acrosomal domain of the nuclear envelope towards the base of the nucleus.
The hydroxyl groups on the polymer network of callose in some way enable the energy barrier to the autocondensation of Si(OH 4 to be overcome and once the first Si-O-Si linkages have been made further condensation reactions can proceed much more easily to eventually build the silica aggregates observed, for example, in Figure 2c.
Formally, the same bridges could be also formed in result of the homocondensation of silanol groups; however, this condensation does not proceed in the absence of any acidic, basic, or ionic substances, which are required for the catalysis of this reaction.
Since during the course of poly-condensation, the reaction proceeds uniformly in all directions in the plane of the substrate, the process of crystallization becomes steady and thus uniform.
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