Each ribosome is composed of 3 RNA strands and 54 proteins woven into 2 separate, but entangled lumps. Unlike DNA , RNA is single stranded. Sex cells are produced by the meiosis process. See somatic cell . Normal males inherit an X from their mother and a Y from their father.
Normal females get an X chromosome from both parents.
See SRY gene . Since all of the genes on a chromosome are inherited as a package, they are essentially linked together. Most cells in multicellular plants and animals are somatic cells. They reproduce by mitosis and have a diploid number of chromosomes. See sex cell .