DNA transcription takes place in the nucleus of a cell, which is where DNA is located. The process begins when the enzyme RNA polymerase hooks itself to a specific sequence found on the DNA at a place called the promoter region.
The purpose of DNA transcription is to copy genetic information from DNA to RNA so that the information in RNA can be used to produce proteins. This process helps preserve the integrity of the DNA information and prevents it from becoming tainted.
One of the main differences in DNA and RNA is the composition of their nucleotide bases. DNA contains adenine, guanine, cytosine and thymine. RNA also contains adenine, guanine and cytosine, but its fourth base is uracil.Learn More
The five kingdoms of living things are Monera, Protista, Fungi (or Mycota), Plantae (or Metaphyta) and Animalia (or Metazoa). The kingdom is the third taxonomic rank in the biological classification system.Full Answer >
The phospholipid bilayer's function is to maintain a barrier between the cell and its external environment and to store and transport a variety of proteins that are essential to the cell's function. It controls what enters and exits the cell.Full Answer >
Fungi are structured in filaments called hyphae, which are made up strings of cells and separated from one another by septa or crosswalls. Many of these hyphae grouped together make up mycelium.Full Answer >
The process of breathing performs a number of important gas exchanges through inhalation and exhalation. When someone inhales, they contract and move their diaphragm, which allows the lungs to expand. This is a part of the process needed to psychically suck in the air. When a person exhales, the diaphragm relaxes and the movement is undone. This allows air to be gradually pushed out of the lungs.Full Answer >