Alleles. Alleles are the "same" genes, but provide a variation of the intended function.
The Avery–MacLeod–McCarty experiment was an experimental demonstration, reported in 1944 by Oswald Avery, Colin MacLeod, and Maclyn McCarty, that DNA is the substance that causes bacterial transformation, in an era when it had been widely believed that it was proteins that served the function of carrying genetic.
Because there are other liquids in your body it passes through and it adds to the amount of water.
The mother has a 50% chance of having a child with that condition. Hope my work helps!
Answer:
relate it to your eyeball