Why is the outdated term "junk dna" a misnomer for noncoding regions of the human genome? Why is the outdated term "junk dna" a
misnomer for noncoding regions of the human genome? The conservation of "junk dna" sequences in diverse genomes suggests that they have important functions. So-called "junk dna" is transcribed into rrna and trna. Most areas of the human genome once called "junk dna" actually do code for protein?
-The conservation of "junk DNA" sequences in diverse genomes suggests that they have important functions.
Explanation;
-The term junk DNA refers to regions of DNA that are noncoding. DNA contains instructions (coding) that are used to create proteins in the cell. However, the amount of DNA contained inside each cell is vast and not all of the genetic sequences present within a DNA molecule actually code for a protein.
-Some of this noncoding DNA is used to produce non-coding RNA components such as transfer RNA, regulatory RNA and ribosomal RNA. However, other DNA regions are not transcribed into proteins, nor are they used to produce RNA molecules and their function is unknown.
Plants use energy from sunlight to turn water and carbon dioxide from what they get into an energy-rich sugar called glucose. This process is called photosynthesis, which means “making things with light”. In photosynthesis, the energy in light is absorbed by photopigments.
Vitamins are organic compounds that are essential in very small .or shortage of a vitamin may result in a vitamin-deficiency disease. Free radicals are formed not only through metabolic reactions .
