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...
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
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 roles....
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 ...
Small region of cytoplasm adjacent to the nucleus; contains the centrioles and serves to organize the microtubules Common Curiosities What happens if the centrosome is absent in a cell? Cells without centrosomes may still divide, but often with errors in spindle formation, leading to abnormal cell...
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 ...
A white blood cell, also known as a leukocyte or white corpuscle, is a cellular component of the blood that lacks hemoglobin, has a nucleus, is capable of motility, and defends the body against infection and disease. White blood cells carry out their defense activities by ingesting foreign ...
Moreover, the viral glycoprotein (gp42) acts as a cofactor binding to human leucocyte antigen (HLA) class II molecules on B-lymphocytes. Memory B-cells are the virus reservoir in healthy people; hence, through this hiding mechanism (latency), the virus may elude the immune system. EBV-...
Personalized regenerative medicine and biomedical research have been galvanized and revolutionized by human pluripotent stem cells in combination with recent advances in genomics, artificial intelligence, and genome engineering. More recently, we have witnessed the unprecedented breakthrough life-saving translati...
and challenging. The ISS lab provides a more natural environment that's similar to the human body, solving at least some of those obstacles. Plus, the positive results so far have given doctors and medical researchers confidence that space-grown stem cells can help treat all kinds of age-rela...