For nuclei larger than He, protons (P) and neutrons (N) are basically bound alternatively to form a P + N ring. The ring folds with a "bond angle" of 90掳 for every 3 continuous nucleons to make the nucleons packed densely. Extra N('s) can bind to ring-P with the same "bond...
The high-fat diet group also showed higher expression of three genes (tph2, htr1a, and slc6a4) involved in production and signaling of the neurotransmitter serotonin—particularly in a region of the brainstem known as the dorsal raphe nucleus cDRD, which is associated with stress and anxiety....
the tiny creatures carry a unique protein called Dsup, which is a contraction of the phrase "damage suppressor." While it might sound like some sort of health boost upgrade in a video game, Dsup is a nuclear protein that binds to a section of DNA inside the nucleus called nucleosomes, th...
A. & Netsky, M. G. Histogenesis of the substantia nigra, ventral tegmental area of Tsai and interpeduncular nucleus: an autoradiographic study of the mesencephalon in the rat. J. Comp. Neurol. 142, 59–73 (1971). Article CAS PubMed Google Scholar Shults, C., Hashimoto, R., Brady,...
DNA, likeRNA, is a type of macromolecule known as anucleic acidthat contains the genetic information for the reproduction of life. DNA is coiled intochromosomesand tightly packed in thenucleusof ourcells. Its shape is that of adouble helixand its appearance is somewhat of a twisted ladder or...
This can happen because the electron is not orbiting around the nucleus in a nice circle, but instead is going in straight lines back and forth, changing its orientation ever so slightly as it maps out a sphere. But wait? Surely, this would mean that the electron has to travel through ...
Each body clock has its own function. The Master Biological clock is made up of a group of about 20, 000 nerve cells in the brain called Suprachiasmatic Nucleus (SCN), and is located in the hypothalamus, just above the optic nerve, and its major function is to control the circadian ...
So, you know you need 6 protons to make a model of carbon. To make a carbon atom, make 6 protons, 6 neutrons, and 6 electrons. Bundle the protons and neutrons together to make the nucleus and put the electrons outside the atom. Note that the model gets slightly more complicated when...
Attach the electrons to the nucleus using the bamboo skewers from Step 4. Push the Styrofoam balls gently onto the skewers, being careful not to poke the skewer all the way through. Place a small drop of white glue on the end of the skewers to hold the Styrofoam in place. You can plac...
The immunoreaction is often followed by a nucleus staining withDNA dyes. On the one hand, this enables better orientation within the cell or tissue sections during microscopy and on the other it indicates the cellular status (e.g. mitosis), if this is of interest to the researcher. Dyes suc...