Answer:
but no the answer is spine which can also be called vertebral column so is B
Answer:
The positive charge of the histone proteins get reduced due to the process of histone acetylation, thus making the wrapping of DNA around the histones less tightened. The loose connected DNA afterward associates with the transcription factors for the articulation of the genes situated in that area.
Generally, when there is no requirement of gene anymore, the acetyl groups from the histones get withdrawn by the activity of histone deacetylase enzyme (HDAC9) that makes the DNA tightly wrapped and inaccessible again. In case, when less expression of histone deacetylase enzyme occurs, the process of deacetylation fails to take place. This indicates that within an immune cell, at the time of infection, the inflammatory gene, which was made available does not get re-wrapped firmly around the histones.
Organelles present in plant cells and not in animal cells are the plastids (chloroplasts etc.) and the vacuole.
The plastids are necessary for the plant production of energy through the process of photosynthesis and the vacuole serves as a storage for water and metabolites.
The plant cell also has a cell wall that surounds the cell membrane, which the animal cells lack.
Explanation:
3 ka answer sugar is salute because it get dissolved inwater
Answer:
Platelets play a major role in blood clotting. Normally, when one of your blood vessels is injured, you start to bleed. Your platelets will clot (clump together) to plug the hole in the blood vessel and stop the bleeding.
