Can you explain a punnet square of sickle cell anemia ?

In 400 words?: This sounds like homework. This is simple mendelian genetics, the old 1:2:1 ratio of outcomes if two carriers mate. So if two sickle carriers mate, 1/4 offspring will be wild-type, 2/4 will be carriers, and 1/4 will have full-blown sickle cell disease. http://www.ndsu.edu/pubweb/~mcclean/plsc431/mendel/mendel1.htm.

Sickle cell anemia: It is just impossible to explain sickle cell anemia in 400 words. It is a genetic blood disorder that is inherited from the parents. The disorder is due to point mutation of the b-globin chain of the hemoglobin -that makes the red blood cells more sensitive and can make them sickling towards exposure of dfferent eg. Infection, dehydration etc.It may lead to acute and chronic complication & death.