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.
Major structures of the human brain.
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Share of Human Capital in Wages in Advanced Countries
Predicted polypeptide sequences translated from potential ORFs in the human TUBA3C gene
A human fragile X chromosome
The photo is a cross-section of thickened human skin