Nucleoplasmin is a nuclear protein. This protein was divided into two segments and linked to the same large cytoplasmic protein,
generating two fusion proteins. After injecting these fusion proteins into a cell, one of the proteins was found in the nucleus and the other in the cytoplasm. Which of the following conclusions can be drawn from these results? a) Nucleoplasmin does not have a nuclear localization signal. b) One of the fusion proteins entered the nucleus by passive transport c) The cytoplasmic protein contains a nuclear localization signal. d) Only one of the two fusion proteins possesses a nuclear localization signal. e) Nucleoplasmin regulates its own destruction in a cell
The correct answer is option d) "Only one of the two fusion proteins possesses a nuclear localization signal".
Explanation:
A nuclear localization signal or sequence (NLS) serves as an amino acidic tag that is recognized by the cell, and the cells responds by importing the protein into the nucleus. In this example a protein was divided into two segments and was used to generate two fusion proteins. Since only one of the two proteins was found in the nucleus, we can conclude that only one of the two fusion proteins possesses a nuclear localization signal.
Differential reproduction means that some organisms in a population produce more offspring than others. <span> Differential reproduction refers to the difference between individuals in a population and how many offspring they are able to leave.The best adapted organisms to a given environment will leave more offspring than those who are not well adapted. Differential reproduction depends on the natural selection.</span>
A group of cytoskeletal structures and related layer limited organelles found at the foremost finish of grown-up commit intracellular protozoan parasites in the phylum Apicomplexa. The apical complex is engaged with connection to and infiltration of the host cell and in parasite multiplication.
Apicomplexans
: Ciliates are pretty cool, but they're not the only group of alveolates out there. Next, we've got the apicomplexans. This group is characterized by an asymmetrical collection of alveoli at one end of the cell, which is called the apical complex.
the apical complex has shaped the way it is because it helps the cell latch onto and infects other cells.That's right, apicomplexans are parasitic. There are 4,000 known species of apicomplexans, all of them parasitic, and some of them pretty nasty.
According to the starling law, parasympathetic effects on cardiac rate and contractility include decreasing the rate of contraction and increasing the filling time resulting in a stronger contraction. The Frank-starling law of the heart states that the stroke volume of the heart increases in response to an increase in the volume of blood filling the heart when all other factors remain constant.
