Most mutations have no effect on organisms. Organisms all have large amounts of genetic code, most of which has no effect. As a result, mutation of this code is rarely meaningful.
Answer: DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.
Explanation:
I believe the answer is C
I read something in my textbook about all living organisms have history of the same genetic info =D
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The two organs that is responsible for ion exchange in bony fishes are gills and kidneys. They maintain the ion balance in the body of bony fishes.
The kidneys in the fishes are comparatively very small and they excrete a very small amount of urine to balance the ion in the body of the fishes.
The gills maintains the constant flow of water in the body of the fishes to compensate the ions in the body of the fishes in water, called as osmoregulation.
