Answer:
plasma membrane protein on the eosinophil's surface
Explanation:
Eosinophils sometimes called acidophils are a part of the immune system. The responsible for fighting viral infections and parasites. Eosinophils expresses IgE- binding protein and a protein toxin, cathepsin on the plasma memberane surface along with the SNARE complexes.
Therefore, binding of an eosinophil to an antibody-coated parasitic worm involves binding of the antibody's stem region to a plasma membrane protein on the eosinophil's surface.
Answer:
c. Affected fathers have all affected daughters, but no affected sons.
Explanation:
Given that the disease is caused by a dominant allele on X chromosome, an affected father would have a disease allele in the X chromosome that passes along to the male gamete, while the gametes containing a Y chromosome would not have it (since it is X-linked).
During sexual reproduction, the father passes an X chromosome to its daughters (the second X chromosome being contributed by the mother) but an Y chromosome to its sons (the single X chromosome being contributed by the mother).
Indeed, within an affected father's offspring, all his daughters will receive the affected X chromosome from him, while his sons will receive an unaffected Y chromosome (since the disease is X-linked). These males will not inherit the disease, for they will receive an unaffected X chromosome from her mother (which is expected to be healthy since the disease is rare).
Answer:
Using a hot plate to heat an unknown liquid in a glass flask could be dangerous if protective/safety equipment aren’t worn. The unknown liquid may be a corrosive chemical which could cause burns when it gets in contact with any part of the body. It s therefore advisable to use googles to prevent the chemicals from splashing into the eyes. Safety gloves and long sleeve shirt should be worn to prevent heat and chemical burns. A shoe covering the whole part of the feet should also be worn as accidents such as the falling to the ground of the heated liquid may occur in the laboratory. This will help protect the feet from contact with the unknown liquid. Nose masks should also be put on to prevent inhalation of toxic chemicals into the body.
Answer:
B
Explanation:
because he's the only one with good internet connection
