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hodyreva [135]
3 years ago
6

Which of the following would NOT be a property of minerals usedfor identification?

Biology
1 answer:
babunello [35]3 years ago
8 0
I think it's radioactivity. From what I learned in 5th grade, the hardness of a mineral can be a major indicator, as a diamond is the strongest mineral, and talc is extremely easy to break down (I think it's Talc at least). A quick google search showed no mention of radioactivity. Also radioactivity just doesn't sound right compared to the other answers.

It's been a while since I've gone over it so I could be wrong.
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List six kinds of epithelium based on numbers of cell layers and shape of cells
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1. Simple squamous epithelium
The cells are flat and only one layer.
2. Simple cuboidal epithelium
The cells are cuboid and only one layer.
3. Simple columnar epithelium.
The cells are columnar and only one layer.
4. Stratified squamous epithelium
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6. Stratified columnar layer
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3 years ago
Knowing the type of food consumed by an organism helps to identify the role of the organism in the community. This role is known
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Answer:

Niche

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Niche refers to adaptive features of an organism, its activity pattern and consumption of resources in the system.

Niche of an organism refers to its habitat, activity role and functional position within system. It includes the resources such as food that it obtains from the habitat for its survival.

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Classifying things by observing can best be done using a
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How to get high affinity antibody?
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Human monoclonal antibody (mAbs) are emerging in the field of cancer therapy and have become an increasing proportion of new drugs that are recently approved. Although there are some methods to obtain antigen-specific mAbs from human B cells, it is generally impossible to directly immunize human beings with antigens of interest. For example, for infectious agents, those approaches are largely restricted. To solve these obstacles, two main approaches have been developed; either by humanizing antigen-specific antibodies from small experimental animals (which is laborious due to the great genetic differences from humans) or rely on the in vitro selection of antigen-specific binders from human antibody repertoires. However, the human mAbs developed by these methods are usually with low affinity.

We are now coming up with a much better idea that is humanizing non-human primates mAbs instead of murine mAbs. Due to the close genetic relationship with humans, immunized NHPs have more potential to be isolated with high affinity antibody to human target than other experimental species, such as mouse, rat and rabbit. In addition, with appropriate method, NHP antibodies are much<span> easier to be humanized</span> without any loss of affinity compared to widely used murine antibodies. 

Resource: http://www.creative-biolabs.com/High-Affi-TM-Human-Antibody-Discovery.html

4 0
3 years ago
What was the purpose of adding methotrexate to the cells expressing a genetically-engineered Dihydrofolate Reductase enzyme in t
ira [324]

Answer:

Methotrexate inhibits the synthesis of DNA, RNA, and protein synthesis of the cells in the experiment.

Explanation:

Methotrexate competitively inhibits the enzyme dihydrofolate reductase (DHFR) which is involved in the synthesis of tetrahydrofolate from the inactive dihydrofolate. The methotrexate blocks the enzyme by binding to its active site thereby preventing further reaction of the dihydrofolate reductase enzyme and dihydrofolate. Tetrahydrofolate is a useful material for the de novo synthesis of thymidine, a nucleoside. And without thymidine, DNA synthesis is hindered. Methotrexate therefore inhibits the synthesis of DNA, RNA, thymidylates and of course protein synthesis.

5 0
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