Histones are proteins that control gene function by attaching salt links to exterior regions of DNA. Argentines is an amino acid whose side chain is often found on the exterior of histones
A chromosome's structural support is provided by a protein called a histone. Long DNA molecules found on each chromosome must fit into the cell nucleus. This is accomplished by the DNA wrapping around histone protein complexes, giving the chromosome a more compact form.
The eight-protein complex known as a histone octamer is what makes up the nucleosome core particle. Each of the four main histone proteins is present in two copies in this structure (H2A, H2B, H3 and H4). When a tetramer, which has two copies of both H3 and H4, interacts with two H2A/H2B dimers, the octamer forms.
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The earths rotation tilts around 23.5 degrees on its pole axis, relative to the plane of earths solar system orbit around the sun. as earth orbits the sun, this creates a 47 degree solar altitude angle
multiply by (6.02 times 10^23 atoms)/(1mole, cancel out atoms)
Not all DNA codes for proteins
Explanation:
- DNA (Deoxy Ribonucleic acid) is the genetic material present in all the eukaryotes.
- An experiment conducted in the 1960s proved that most parts of DNA are composed of long strings of repeated sequence which does not code for proteins.
- The process involves in coding for a protein are the transcription of DNA to RNA, then translation followed by protein synthesis. There are enzymes involved in these processes.
- As per the latest study, it states that only 1 per cent of genes code for proteins rest 99 per cent is called the non-coding DNA.
