Alleles are used by cells to make proteins. When an allele changes, the protein that the cell makes also changes. The new alleles cause the cell to make new proteins. How do you think new proteins affect the fitness of children?

1.They have no effect on fitness
2.They increase fitness
3.They decrease fitness
4.All of the above

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.

You are studying a protein that you call protein x. there is an aspartic acid at a key position in protein x which is important in the folding and stabilization of that protein. if this aspartic acid is changed to a different amino acid, which type of amino acid substitutions is most likely to allow the protein to fold normally?

What type of tree is the tallest tree in the world?