Identify the plasmid that must contain the CD3γ core promoter sequence but the fewest or no negative regulatory sequences. Based
on the data in Figure 2, describe the most likely cause of the variation in luciferase activity among the cells that contain plasmids pCD3γ-419 , pCD3γ-309 , pCD3γ-239 , and pCD3γ-199 . Calculate the approximate percent increase in luciferase activity between cells containing plasmid pCD3γ-59 and cells containing plasmid pCD3γ-149 . Round to the nearest whole number.
Settlement houses were safe residences in poverty-stricken, mostly immigrant neighborhoods in major cities such as New York, Boston, and Chicago. The settlement house movement began in England and then emerged in the U.S. in 1886 with the founding of University Settlement House in New York City.
La atmósfera es la capa de gas de un cuerpo celeste. Los gases son atraídos por la gravedad del cuerpo, y se mantienen en él si la gravedad es suficiente y no es barrida completamente por el viento solar.