Why is sickle cell anemia a good example of heterozygote advantage?

Cystic Fibrosis is an autosomal recessive disorder. Explain how it is possible that two parents that do not have this disorder can have a child that does.

When Mendel discovered inherited traits, one trait he looked at was the height of bean plants. The offspring of two tall bean plants was likely to be tall itself.

What must occur during the cell cycle to ensure proper division of the chromosomes?

Bacteria can reproduce quickly by means of binary fission.

Stranded on an island, you have two sources of water to drink: salty ocean water and contaminated fresh water. explain your choice of drinking water and indicate why your selection is the best choice.

Match the description in column 1 to the corresponding parts of the nervous system in column 2. A. Brings messages to your brain through your spinal cord autonomic B. If you stub your toe, this carries the message peripheral C.

when listening the levels of orginization in orginisims from the smallest to most complex, which level is just below organs in complexity

Relative to rainfall, the tundra is most like what other biome

Which artery is felt when taking the pulse at the wrist?

How does skin prevent entry of micro organism in the body