In a red blood cell, the control center is the nucleus. A mitochondria is not a nucleus. It is another organelle that produces energy for the cell.
2 lowercase letters means that the recessive gene is visible, so it should be red feathers
1) The function of a protein is determined by its shape. The shape of a protein is determined by its primary structure. The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene DNA encoding it.
Because water is a polar molecule, it makes an excellent solvent for polar and ionic compounds found within cells and tissues.
