Swine are vulnerable to infection by bird flu virus and human flu virus, which can both be present in an individual pig at the same time. When this occurs, it is possible for genes from bird flu virus and human flu virus to be combined, thereby producing a genetically distinctive virus, which can subsequently cause widespread disease.
The production of new types of flu virus in the manner described above is most similar to the phenomenon of
A) bottleneck effect.
B) founder effect.
C) natural selection.
D) gene flow.
E) sexual selection.
Phagocytosis of an antibody-bound virus by a macrophage
Lateral View of the human brain in cross section
Before the advent of vaccinations and antibiotics, infectious diseases such as cholera were the scou
OCD and Streptococcal Hemolytic Infection
Time Line of Human History From Upper Paleolithic Period to the Present
Chromosomal Translocations Associated with Human Cancers