Answer:
Mitosis may be defined as the process of cell division in which a single diploid parent cell divides into two daughter cells. The four stages of mitosis are prophase, metaphase, anaphase and telophase.
The chromosomes get align at metaphase plate during metaphase. Sometimes the arrangement of chromosomes takes more time and after their alignment anaphase process begins because cells has various checkpoints to maintain the proper cell division. Their improper functioning can cause diseases like cancer. The cells has proper metaphase/ anaphase transitions check point that maintains the proper cell division.
Mitosis is important because it is essential for growth and repair in the body. Mitosis happens when a parent cell divides, creating two identical copies, referred to as daughter cells. During this process, it is essential that the daughter cells are exactly the same with the same copies of DNA.
Answer:
In London, On September 29, 1829.
Explanation:
The history of policing started On September 29, 1829, when the government of Britain established Metropolitan Police Service in London which was the world's first modern and professional police force. The government established this police service in order to control crimes and protect the people from criminals. After Britain every country in the world established a police department in order to control crimes in their countries.
Answer:
The correct option is C) cytosolic, endoplasmic reticulum
<em>New membrane phospholipids are synthesized by enzymes bound to the cytosolic side of the endoplasmic reticulum membrane. </em>
Explanation:
Synthesis of proteins that are destined to membrane or exportation starts in the cytoplasm with the production of a molecule portion known as a signal aminoacidic sequence. This signal sequence is located in the amino extreme of the synthesizing protein, and when it reaches a certain length, it meets the signal recognizing particle. This particle joins the signal sequence of the protein and leads the synthesizing protein and associated ribosome to a specific region in the Rough endoplasmic reticulum where it continues the protein building. When they reach the membrane of the endoplasmic reticulum, the signal recognizing particle links to a receptor associated with a pore. Meanwhile, the ribosome keeps synthesizing the protein, and the enlarged polypeptide chain goes forward the reticulum lumen through the pore. While this is happening, another enzyme cuts the signal sequence, an action that requires energy from the ATP hydrolysis. When the new protein synthesis is complete, the polypeptide is released into the reticulum lumen. Here it also happens the protein folding (which is possible by the formation of disulfide bridges of proteins are formed) and the initial stages of glycosylation (the oligosaccharide addition). The newly synthesized proteins get packaged into vesicles that take them to the Golgi apparatus.
In the Golgi complex, proteins suffer their final association with carbohydrates and lipids to originate glycoproteins and glycolipids. Once these processes are done, the glycoproteins and glycolipids are packaged again into new vesicles that drive them to their final destiny.
