Plasma takes up 55% of blood's volume
This cartoon now includes the locations of three genes. The positions have only been noted on one chromatid for simplicity's sake. Genes a and b would cross across with the least frequency (closest together on chromosome)
One of a chromosome's two identical halves that has undergone replication in order to facilitate cell division is referred to as a chromatid. The centromere, a constrictive area of the chromosome, serves as the connection between the two "sister" chromatids.
During meiosis and mitosis, chromatin fibers are used to make chromatids. When DNA is wrapped sequentially around skeletal proteins, the structure is known as a nucleosome and is referred to as chromatin. Chromatin fibers are even more densely wrapped nucleosomes. DNA can be compressed by chromatin to fit into the nucleus of a cell. Chromosomes are made of threads of condensed chromatin.
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Salt kills some types of bacteria, effectively by sucking water out of them. In a process known as osmosis, water passes out of a bacterium so as to balance salt concentrations on each side of its cell membrane. ... These pathogens have a salt alert system that uses sponge-like molecules to prevent water loss.
Metaphase I
The Metaphase stage found in meiosis I is called the Metaphase I. In here, the pairs of chromosomes began to arrange on the Metaphase plate and then they bind to the meiotic spindle. At this moment, the centrioles can be seen at the opposite poles of the dividing cell. The pairs of chromosomes get attached to the spindle fibers from each pole, at the opposite sides.
Metaphase II
The Metaphase II is found in meiosis II, and it is very similar to the Metaphase found in mitosis I. In this step too chromosomes get arranged on the Metaphase plate and are attached to the completed spindle.
