While snorkeling in the ocean you find large, leafy organisms that are brownish in color growing in large masses. You are unsure
whether they are protists since they look quite plant-like. If they are actually protists, what characteristic will the organism’s cells exhibit? A) Each of the cells in the organism will have its own nucleus. B) The cells will form a colony with separate groups of cells doing various jobs. C) The cells will form a colony without differentiating into separate tissues. D) Most of the cells in the organism will have cilia or flagella.
Xeroderma pigmentosum arises as a result of the cell being unable to correct lesions induced by UV. This can be as a result of mutations in the enzymes which include XP A-E needed for correction of the lesions. Failure to correct these lesions leads to their accumulation and then damage to the cell.
