People with one copy of an abnormal gene for a recessive trait (and who thus do not have the disorder) are called carriers. With codominant traits, both copies of a gene are expressed to some extent. An example of a codominant trait is blood type.
books.google.com-Robert Louis Stevenson originally wrote 'Dr. Jekyll And Mr Hyde' as a 'chilling shocker.' He then burned the draft and, upon his wife's advice, rewrote it as the darkly complex tale it is today.
1 Answer 1. active oldest votes. up vote 2 down vote accepted. Russell Crowe is playing Dr. Henry Jekyll, a well-known (to Anglophones, at least) character from an 1886 novel who invents a potion that regularly transforms him into an evil alter-ego, Mr. Edward Hyde.