Interferon are small proteins (cytokines) that enhance the immune system and defense against viruses and bacterial infections.
Interferon stimulates the infected cells and those nearby to produce proteins. These proteins prevent the virus from replicating within them. Further production of the virus is inhibited<span> and the infection is stemmed.
</span>There are three types of interferon: gamma, alpha and beta. Alpha and beta can be produced from any cell, and gamma is<span> produced only by natural killer cells and T lymphocytes. The main purpose of gamma interferon is to signal the immune system to respond to infectious agents or cancerous growth.</span>
The joining of an egg and a sperm
Free health care reduces poverty by allowing those with low incomes,access to health benefits that would not normally be offered to them. Trips to the emergency room, the doctor, and other places are not free or reduced for people who don't have certain health insurance plans. Free health care can ensure that people are spending less when it comes to making sure they are healthy, allowing them to spend money on other necessities.
The answer is A) Skin color. Hope this helps!:)
