Sickle cell disease is a genetic disorder that gives red blood cells a crescent shape instead of the typical disk shape. this genetic disease is recessive. if two individuals who have one recessive gene have four children, what percentage of the children will show symptoms of sickle cell disease?

25 percent
100 percent
50 percent
75 percent

The answer is 25 percent.  Brainliest Answer Please.

The salt in the sea water dehydrated the sailor because her body could not take in the amount to salt in the sea water

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.