Sickle cell disorder is an inherited blood disease featured by defective hemoglobin. The condition affects the hemoglobin, or the red blood cells, and their tendency to conduct oxygen. The normal hemoglobin cells are round, smooth, and flexible, and thus, they can travel via the vessels in the body effortlessly.
On the other hand, the sickle cell hemoglobin cells are sticky and stiff and form a sickle, C shape, when they lose their oxygen. These cells combine together, and cannot effortlessly move through the blood vessels.
Answer:
The correct answer is "the S layer may play a role in protecting cells from viruses and predatory bacteria found in nature but not in laboratory cultures".
Explanation:
The S-layer (surface layer) is a part of the cell's envelope comprised of of identical proteins or glycoproteins that could be found in archaes and some bacterias in nature. The function of the S-layer is unknown, however the fact that is only seen in nature suggest that it may play a role in protecting cells from viruses and predatory bacteria found in nature but not in laboratory cultures. It is likely that archaes and bacteria synthesize the S-layer when they recognize viruses and predatory bacteria in nature, the S-layer is not synthesized in laboratory cultures because these pathogens are not present.
Answer:
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Explanation:
Animal agriculture simply refers to the extensive use of various cattles , birds and other animals and their derivative in contributing to the growth and development of the economy and it's populace. In the most evident of cases and scenarios, we can establish that animal agriculture plays important role in the economy which include but not limited to being an integral source of revenue for the state and local economy, provision of jobs and subsequent reduction in level of unemployment, an important source of protein such as meat, fish, poultry birds, eggs and so on.
Even in the most developed of economies, agriculture continues to be a main point of focus in most countries, contributing immensely to the GDP of the nation. Animal agriculture could be practiced from a relatively low scale level which has made it easy for individuals to be self employed and a resulting reduction in level of unemployment.
Prokayotivs are a type of cell
