In eukaryotes the noncoding portions of DNA are called what?

Answer 1

You get the entire organism from the single fertilized cell. There should be no doubt that this process is conducted by your genes only. So all the cells of your body are made in very particular order by your genes only. After the individual is formed, the functions of the most of the genes is over. You can easily check the function of the particular gene by sacking the same in zygote. The very important genes, which are involved in primary steps, will create the serious disorders in that particular animal. In such case the animal may not even survive. He may not have some important organ or system like liver or cardiovascular system or respiratory system. Step by step the function of the gene becomes less and less important, but then that is enough to cause some disorder like mucoviscidosis or poly-cystic kidney disease, in the patient, with slight variation. There are more than enough permutations and combinations, to produce all types of cells in the body of all the organisms on the earth, past, present and future. That is why 98 % genes in humans are noncoding.

Some people call these sections "junk DNA" but more research has shown that they can play a significant role in controlling cell development.

Answer 2

they are non-coding mRNA sequence in a mRNA strand but are not found in DNA as they are removed during mRNA processing before the formation of protein

Answer 3

Noncoding sequences in eukaryote cells mean that, those sequences do not form the proteins. That means they are not expressed as proteins in that eukaryote.

Answer 4

Introns (:

Answer 5

introns