Me! in some conditions caused by mutations, it is beneficial for an individual to be a carrier of the disorder, and not have the fulll homozygous condition. this is known assickle cell traitheterozygote advanatage fitness homozygote advantage

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.