The dark band of the muscle sarcomere that corresponds to the thick myosin (protein) filaments.The A band is situated on either side of the H zone of a muscle sarcomere, that is the area where contraction and relaxation of the muscle occurs, where sarcomeres overlap during muscle movements.
You will also like...
A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..
The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..
Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..
This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..
This tutorial is a continuation of the first lesson on chromosomal mutation. Here, find out the chromosomal aberrations ..