Answer:
The correct answer is "The "host range" for a virus is determined by the presence or absence of particular components on the surface of a host cell that are required for the virus to attach".
Explanation:
The missing option of this question is the one that is correct, which is "The "host range" for a virus is determined by the presence or absence of particular components on the surface of a host cell that are required for the virus to attach". A virus is able to infect by recognizing particular components that are present in the surface of the host cell. If this components are absent in the cell, the virus is not able to infect it. Therefore, the "host range" is determined by the presence or absence of this particular components.
Answer:
A cell takes in DNA from outside the cell then the external DNA becomes a component of the cell's DNA. ... a gene that makes it possible to distinguish bacteria that carry the plasma (and foreign DNA) from those that don't.
Explanation:
Answer: Roundworm is refered to as parasite because it harms it host.
Explanation: Roundworm belongs to nematodes, they have two openings mouth and anus,with segmented body,it derives it nutrients by attaching itself to internal organs of it host by and suck the host nutrients.example of Roundworm is Ascaris
Answer:
The correct answer is option D) "Ethanol / industrial microbiologists".
Explanation:
Ethanol is one of the most common components of biofuels in the United States. Ethanol is used in biofuels for its property of producing oxygen when burned, which makes car's engine to burn fuel more efficiently. Ethanol is produced by microbial fermentation of glucose from cellulose or cornstarch, and industrial microbiologists are the professionals responsible of making this product commercially available.
Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.Research carried out with the use of these cells has demonstrated their effectiveness in the treatment of various diseases, such as leukemia, heart disease and hematological diseases. Embryonic stem cells, in turn, have the ability to form any tissue in the body.
<h3>How are embryonic stem cells used?</h3>
Stem cells have the ability to differentiate and self-renew. For this reason, they can be used in the treatment of degenerative diseases. Stem cells stand out for their ability to transform into different cell types, that is, they are cells with a great capacity for differentiation.
<h3>What diseases could be treated with the use of Embryonic Stem Cells?</h3>
- Diseases that can be treated with stem cells
- leukemias. Leukemia is a generic term used to describe the “cancer” of leukocytes, the white blood cells.
- Thalassemias.
- Neuroblastoma.
- Primary immunodeficiencies.
- Sideroblastic anemia.
- Metabolic diseases.
- Sickle cell anemia.
With this information, we can conclude that Scientists are also working on ways to develop stem cells from other cells, using genetic “reprogramming” techniques.
Learn more about stem cells in brainly.com/question/25584485
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