The sickle-cell trait confers some immunity to __________.
a. influenza
b. dysentery
c. malaria
d. yellow fever
Question 2
In his research on psychological development in the Tiv, Douglass Price-Williams found that __________.
A) there was no difference between Tiv and European children in understanding of conservation of earth, nuts, and numbers
B) even with natively familiar test materials, Tiv children never reached an understanding of conservation to match the European children
C) the Tiv children had a stronger understanding of conservation than European children when tested with earth, nuts, and numbers
D) the Tiv children reached an understanding of conservation at an earlier age than European children, regardless of the testing method
A missense mutation that causes red blood cells to sickle in sickle-cell anemia.
The eukaryotic cell cycle and cell division in an organism with six chromosomes.
Structures of a cell.
IgE bound to a mast cell and cross-linked by antigen-causing mast cell degranulation.
(a) The distribution of sickle cell anemia in the Old World. (b) The distribution of malaria overlap
Mouse Cell Nuclei During Meiosis