Related to living organisms
the biotics requlating of the environment is a key to global change
The correct answers are:
- Methylation of histone tails in chromatin can promote condensation of the chromatin.
- DNA is not transcribed when chromatin is packaged tightly in a condensed form.
- Acetylation of histone tails is a reversible process.
- Some forms of chromatin modification can be passed on to future generations of cells.
- Acetylation of histone tails in chromatin allows access to DNA for transcription.
Histone modifications are post-translational modifications of histone protein that can affect gene expression by altering chromatin structure or recruiting histone modifiers.The most common modifications are methylation, phosphorylation, acetylation and ubiquitylation. All of them affect the binding affinity between histones and DNA and thus loosening (gene activation) or tightening (gene repression) the condensed DNA.
Histone methylation is a transfer of methyl group by histone methyltransferases to lysine or arginine amino acid of protein. Effect of methylation depends on the type of protein that is modified. Demethylation is the reverse process.
Histone acetylation is the process of adding of an acetyl group(by histone acetyltransferases) to histone proteins and it can also activate or inhibit the gene expression. Deacetilation is reverse process.
Climate change happens by the circle of life
Answer:
B) number of muscle cells ❤️
Answer:
<em>Pseudomonas aeruginosa.</em>
Explanation:
<em>Pseudomonas aeruginosa </em>is a gram negative, rod shaped bacteria that proves to be pathogenic for plants, humans and other organism. This bacteria is a multi drug resistance pathogen.
<em>Pseudomonas aeruginosa </em>causes osteomyelitis that involves the plantar puncture to the foot sole. The bacteria can cause specific skin injuries and more risk is present in the diabetic patients. This bacteria can also cause various post operative injuries.
Thus, the answer is <em>Pseudomonas aeruginosa.</em>
