What is the structure of the spindle?
The mitotic spindle is a structure composed of microtubules which segregates chromosomes into the daughter cells during mitosis. A microtubule is a rope-like component of the cytoskeleton. The centrosome is an organelle that serves as a microtubule organizing center during cell division.
What is a spindle and its function?
Definition. Spindle fibers are microscopic protein structures that help divide genetic material during cell division and organize cellular components. The spindle fibers form out of the centrosome, also known as the microtubule-organizing center, or MTOC.
Which cell structure produces the spindle?
centrioles
Spindle fibers are produced in the centrosome from cylindrical microtubules called centrioles.
What is the function of centrioles and spindle?
The main function of centriole is to help with cell division in animal cells. The centrioles also help in the formation of the spindle fibers that separate the chromosomes during cell division (mitosis).
What is a spindle shape?
Definition. adjective. Having a shape like a spindle, that is being wide in the middle then tapering at both ends.
What phase does the spindle form?
The mitotic spindle also begins to develop during prophase. As the cell’s two centrosomes move toward opposite poles, microtubules gradually assemble between them, forming the network that will later pull the duplicated chromosomes apart.
What is the function of the cilia and flagella?
Cilia and flagella are motile cellular appendages found in most microorganisms and animals, but not in higher plants. In multicellular organisms, cilia function to move a cell or group of cells or to help transport fluid or materials past them.
What are spindle cells?
Spindle cells are specialized cells that are longer than they are wide. They are found both in normal, healthy tissue and in tumours. The most common type of normal spindle cell is called a fibroblast. Fibroblasts are support cells that are found in a type of connective tissue called stroma.
What organ is spindle?
Muscle cells
Muscle cells are the spindle-shaped cells found in the human body. They have a spindle shape because they control the human body’s contraction and relaxation. The connective tissues encircle these cells. Smooth muscle tissue has a structure that is distinct from that of other muscle tissue subtypes.
What is separated in anaphase?
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle. The separated chromosomes are then pulled by the spindle to opposite poles of the cell.