Biology, 20.04.2020 19:53 spiderman66

Biology Help!

Edward Jenner is considered the founder of vaccines in the western world. In 1796, he inoculated a 13 year-old-boy with the virus that caused cowpox. Since cowpox and smallpox are closely related, the result was a demonstrated immunity to smallpox. Later, the first smallpox vaccine was developed. During the next two centuries, systematic implementation of mass smallpox immunizations culminated in its global eradication in 1979.
Using the cowpox virus to create a virus for smallpox ...

A) ...allowed only expectant mothers to pass the immunity on to their unborn children.
B) ... induced a secondary response because the body immediately recognized cowpox as smallpox due to the similarities in their genetic blueprints.
C) ...induced a primary immune response and immunological memory. Because of this, an encounter with the pathogen would trigger a rapid and strong secondary response.
D) ...allowed the virus to lie dormant within the cells of the person. When introduced to the virus again, the body could use the dormant pathogen as a point of reference.

Answers: 3

Show answers

Another question on Biology

Biology, 21.06.2019 19:30

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

Answers: 1

Answer

Biology, 21.06.2019 21:20

The endoplasmic reticulum (er) is an organelle in some cells. in these cells, it is continuous with the nuclear membrane and forms a large part of the cell\'s total membrane. sort the phrases below as describing rough er, smooth er, both, or neither. note: if you answer any part of this question incorrectly, a single red x will appear indicating that one or more of the phrases are sorted incorrectly.1) found in prokaryites and uekaryotys2) involved in protein synthesis3) involve in lipid synthesis4) contains molecular chaperones in lumen5) bound with ribosomes6) involved in toxin or drug metabolism7) large systemot internnected tubules,vesicles, and sacs8) "packages" enzymes in vesicles for secretion.

Answers: 2

Answer

Biology, 22.06.2019 08:40

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

Answers: 1

Answer

Biology, 22.06.2019 09:00

Were you able to observe the nucleolus in any of the cells if so which ones

Answers: 3

Answer

You know the right answer?

Biology Help!

Edward Jenner is considered the founder of vaccines in the western world....

Questions