Sentence examples for the first is required from inspiring English sources

Every level includes five missions; only the first is required to continue on during the campaign, but other missions include completing a harder version of a level and collecting 100 rings.

Three rounds of replication are predicted to generate an unmethylated target: the first is required to incorporate 2-AP opposite cytosine, the second to incorporate thymine opposite 2-AP and the third to incorporate adenine opposite thymine.

The first is required for activation of the origin, thus it is usually called the active form [ 23].

This results in a set of basis functions, whose the first are required to capture the primary appearance characteristics of the observed scene.

It is hypothesized that one unit of the dimer performs the catalytic reaction whereas the second is required to recognize and properly orient the bound tRNA for the catalytic reaction.

Rad51 has two DNA binding sites, one of which is required for high-affinity DNA binding and filament formation, and the second is required for homologous pairing (Cloud et al. 2012).

The fourth is requiring a lot of admiration- excessive admiration, really.

One physician was designated to present theoretical material from the pediatric literature, the second was required to present the evidence base for the topic and the third was to present a relevant case from their clinical practice.

Wouldn't the board first be required to change the condominium bylaws, something that typically takes a two-thirds majority vote?... Raymond K. Hormon, the Bronx.

If the subject was unable to complete the trial, a minimum of 30 seconds was required for the trial to be included in analysis.

Often in a coupled two tank MIMO system, the level of the first tank is required to be kept at a constant level while the level of the second tank is required to follow a time varying reference signal.