Some cells visible to the naked eye the smallest objects that the naked human strattera cost eye can see about 0. 1 mm long. This means that under certain conditions, you can see ameoba Proteus, the human egg, and without an increase in Paramecium. Magnifying glass can help you see them more clearly, but they still look tiny. Smaller cells are clearly visible under a light microscope. It is even possible to discern structure within the cell such as nucleus, mitochondria and chloroplasts. Light microscopes use a system of lenses to enlarge the image. Power light microscope is limited to the wavelength of visible light, which is about 500 nm. The most powerful microscope light may resolve bacteria but not viruses. To see all less than 500 nm, then you need an electron microscope. Electron microscopes capture high electron beam on or object that absorbs and rejects some of the electrons. Resolution is still limited by the wavelength of the electron beam, and the waves of this length is much smaller than visible light. The most powerful electron microscopes can resolve molecules and even individual atoms. As the X chromosome to be almost as big as the head of sperm? No, it's not a typo. First, there is less DNA in sperm cells than are not in germ cells
such as skin cells. Second, the DNA in sperm cells are super condensed and pressed in the form of high density. Third, the sperm head almost all nuclei. Most of the cytoplasm were pushed to sperm effective torpedo-like swimming. X-chromosome is shown here in a compressed state, as it will appear in the cell, which occurs by mitosis. It was also duplicated, so that actually two identical copies glued to their middle. Human sperm contains only one copy each of 23 chromosomes. Chromosome consists of genetic material (one long piece of DNA) wrapped around structural proteins support (histone). Histone of DNA and prevent this confusion, as well as thread revolves around the coil. But they also add much bulk. In sperm, specialized set of tiny proteins support (protamine) DNA packaging by about one-sixth volume of mitotic chromosomes. Adenine nucleotide labels
not quite sure. Adenine refers to the molecule, nitrogen >> << base. It would be more accurate to refer to nucleotide monophosphate dezoksiadenozina >> << since it includes the deoxyribose sugar and phosphate groups
in addition to the nitrogen base. However, more usual
"adenine" label makes it easier for people to recognize it as
one of the building blocks of DNA. Carbon size of the carbon atom based on its radius van der Waals forces. .
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