In klinefelter syndrome males have chromosomes xxy. this is an example of:
a. non-disjunction of sex chromosomes
b. crossing over
c, chromosomal rearrangement

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.

cuz he is really really short, assuming an unorthodox and inherently unlucky configuration of elevator buttons…

explanation: