<span>3,3',5,5'-Tetramethylbenzidine or TMB is a chromogenic substrate visualising reagent used in enzyme-linked immunosorbent assays (ELISA), it yields a blue color when oxidized, typically as a result of oxygen radicals produced by the hydrolysis of hydrogen peroxide by HRP, (thermofisher). The expected colorimetric result from the negative control in your assay will be no development of blue color</span>
Answer:
Plants rely on bees and other insects to reproduce and so they have adapted, over time, to become more attractive to them. Bees are drawn to plants with open or flat tubular flowers with lots of pollen and nectar. A flower's scent can have particular appeal to bees, and its bright colours may lure the bees in.
Explanation:
Answer:Type I interferons help protect cells from viral infection. The correct option is B.
Explanation:
Type I interferon (IFNα/β) is a type of cytokine that provides one of the first lines of host defense against viral infection.
Type I interferons act in a paracrine manner such that it have numerous effects on the surrounding cells, preparing them to ward off possible infection. The primary function is to induce protection against viruses in neighboring, non-infected cells. In the target cells they cause digestion of viral DNA and viral proteins.
Injury to cervical vertebra c 3-c 4 is particularly problematic because C) the phrenic nerve that serves the diaphragm receives its fibers from here.
- The top portion of the spinal cord, which is made up of the seven cervical vertebrae (C-1 to C-7) in the neck, is located in the cervical region of the spine.
- Cervical spinal cord injuries are often the most serious kind of spinal cord injury because they affect a bigger area of the body and are closer to the brain.
- Tetraplegia or quadriplegia, which means there is little to no feeling or movement below the shoulders or neck, will develop from a cervical injury.
- The cervical spine's middle segment is made up of the C3, C4, and C5 vertebrae. Injuries to the cervical vertebrae C3–C5 are frequently severe because they inflict more harm to the central nervous system.
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Nondisjunction is the improper segregation of chromosomes during either meiotic or mitotic cell division.
The result of nondisjunction is dosage imbalance - either one extra or one missing chromosome for some proportion of the resulting cells.
