(c) Identify the plasmid that must contain the CD3 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 actritty among the cells that contain plasmids PCD34-419, pCD3--309, pCD3--239, and pCD3--199. Calculate the approximate percent increase in luciferase activity between cells containing plasmid pCD3--50 and cells containing plasmid pCD3--149. Round to the nearest whole number. ​

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.