What is a Cell?Cells are considered by many scientists to be the smallest unit of life. Some organisms are composed of a single cell (such as a bacterium). Other organisms (such as humans) are multicellular, meaning they are composed of many cells that work together....
cells. there are many different species of apple and each one will have a slight variation in the chromosomes and it is that which differentiates the species. if you want to explain to someone what the difference is between a bramley and a granny smith, you will probably say something like...
4.2. How long do sperm cells live for? 4.3. When does sperm production start in the male? 4.4. How far does a human sperm cell travel to fertilize an egg? 4.5. How fast can a sperm travel? 4.6. Why does the human sperm cell have lots of mitochondria? 4.7. What is the function ...
Cell theory is the most fundamental principle in biology, one stating that all living organisms are composed of similar primary units called cells. It is a universally accepted theory about the organization and structure of all organisms. Modern research and molecular biology, with their advanced too...
Diseases caused by trypanosomatids include leishmaniasis (Leishmania spp.), Chagas disease (Trypanosoma cruzi), and sleeping sickness (Trypanosoma brucei) that affect millions of people, especially low-income populations, being classified as neglected tr
a nucleus. Nuclear radioisotopes like uranium-235 are unstable, however, with 92 protons and 143 neutrons, so they very slowly decay, with a half-life of 700 million years. Forcing uranium-235 to decay at a faster rate by neutron bombardment results in the creation of a very unstable ...
intravascular NK/T-cell lymphoma; Epstein–Barr virus; extranodal NK/T-cell lymphoma; aggressive NK-cell leukemia; EBV-positive primary nodal T/NK-cell lymphoma1. Introduction Intravascular lymphoma (IVL) is a malignancy characterized by the presence of tumor cells localized within blood vessel ...
into clinical applications, with cardiovascular research as a case example. This review also brings to our attention the scientific and socioeconomic challenges that need to be effectively addressed to see the full potential of pluripotent stem cells at the clinical bedside....
environment in the ISS National Laboratory can reveal mechanisms in stem cells that can't be detected under normal gravity. Dr. Zubair has initiated three stem cell experiments to the ISS from his lab and found that the stem cells have greater regenerative capacities in the space lab than on ...
Abstract In the last 20 years it has been widely demonstrated that cell nucleus contains neutral and polar lipids localized in nuclear membranes, nucleoli, nuclear matrix and chromatin. Nuclear lipids may show specific organization forming nuclear lipid microdomains and have both structural and functional...