the microtubules are located in the nucleus of a cell.
the microtubules are located in the nucleus of a cell.
where is the microtubules located in a cell?
nucleus,
microtubules that attach to the kinetochores are known as "kinetochore microtubules". other microtubules will interact with microtubules from the opposite centrosome: these are called "nonkinetochore microtubules" or "polar microtubules". a third type of microtubules, the aster microtubules, radiates from the centrosome into the cytoplasm or contacts components of the membrane skeleton.









































section::::phases.:meiosis i.:metaphase i.
meiosis
kinesins are a group of related motor proteins that use a microtubule track in anterograde movement. they are vital to spindle formation in mitotic and meiotic and chromosomes separation during cell division and are also responsible for shuttling mitochondria, golgi bodies, and vesicles within eukaryotic cells. kinesin have two heavy chains and two light chains per active motor. the two globular head motor domains in heavy chains can convert the chemical energy of atp hydrolysis into mechanical work to move along microtubules. the direction in which cargo is transported can be towards the plus-end or the minus-end, depending on the type of kinesin. in general, kinesins with n-terminal motor domains move their cargo towards the plus ends of microtubules located at the cell periphery, while kinesins with c-terminal motor domains move cargo towards the minus ends of microtubules located at the nucleus. fourteen distinct kinesin families are known, with some additional kinesin-like proteins that cannot be classified into these families.
motor protein