C. are parallel and run in opposite directions.
Explanation – Deoxyribonucleic acid (DNA) is double stranded molecule present inside the nucleus of the cell and has double helical symmetry. The two strands run or proceeds antiparallel to each other which means that one strand proceeds from 5' to 3' direction while the other strand proceeds from 3' to 5' direction.
It so happens because the nitrogenous base from one strand binds to its complimentary base pair of the other strand. Hydrogen bond is the bond that connects nitrogenous bases of two strands.
CFCs... Acronym for Chloro-Fluoro-Carbons
Transgression is to go against. Whereas marine regression is under sea floors to rise above sea levels.
Answer:
Inflammation is a process that occur when tissues are injured by bacteria,heat,toxin or other causes.
Explanation:
Inflammation triggers damage to the living tissues and thus it creates defense mechanism that protects higher organism from infection and injury.The main purpose of this is to eliminate those agents that is injurious to heath and removes the damage tissues so that body can heal.
This response activates by change in blood flow,increase the permeability of blood vessels,accumulation of fluids,proteins,WBC to the site where tissue damage takes place.
If inflammation occur for few days,called as acute inflammation and when inflammation occur for longer period of time, it is called as chronic inflammation.
Inflammation causes redness by dilation of small blood vessels.
Swelling called edema by accumulation of fluid.
The factors include microorganism,physical agents,inappropriate immunological response,death of tissue.
The infectious agents are virus,bacteria etc.
Answer:
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