Will base 1 bind with base 2? Why or why not? Base 1 will bind with base 2 because they are both purines.
Base 1 will not bind with base 2 because they are both purines.
Base 1 will not bind with base 2 because they are both pyrimidines.
Base 1 will bind with base 2 because they are both pyrimidines.

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.

what subject is this

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.