LIFE SCIENCE

Detailed explanation-1: -The cartwheel is a subcentriolar structure consisting of a central hub and nine radially arranged spokes, located at the proximal end of the centriole. It appears at the initial stage of the centriole assembly process as the first ninefold symmetrical structure.

Detailed explanation-2: -The centrosome is surrounded by amorphous pericentriolar materials which lie perpendicular to the centriole and centrosome and have an organization like a cartwheel.

Detailed explanation-3: -Centrioles are paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope. Centrioles play a role in organizing microtubules that serve as the cell’s skeletal system.