A: A blood moon is a deep reddening of the moon caused by the Earth passing between the moon and the sun. During the period of the eclipse, light from the sun... Full Answer >
Sometimes, bones are the only accessible source of DNA, thanks to their structure, which preserves DNA comparatively well and for a long time. The main problems of DNA extraction from bones are DNA degradation due to environmental factors and the presence of soil-derived inhibitors like humus acids [1â10].
In the center of most large bones there is a soft tissue (called bone marrow) that makes most of the body's blood cells. The marrow is a network of tissue that contains immature blood cells in an organized structure.n children, the red bone marrow is in the long bones, such as the femur. A bone marrow biopsy involves removing tissue from the red bone marrow to be sent to the lab for microscopic examination.