Semiconservative replication means that when the double stranded DNA helix was replicated, each of the two double stranded DNA helices consisted of one strand coming from the original helix and one newly synthesized. When dna replicates, the two new molecules each have a strand of the old dna.
Rhode Island Reds are one of the most popular chicken breeds in the world. Developed in America, they lay a large amount of rich medium brown eggs per year. They are often used to create sex-linked chickens where the roosters are different colors from the hens for easy sorting when they are chicks.ne of the more unusual types of chicken breeds is the Polish. These birds are light in body and are seen frequently in poultry shows. Their most unusual feature is the pom-pom like crest of feathers on their heads.
Hybrids birds are highly cross bred chickens. Most hybrids are based on the classic Rhode Island Red, Maran, Plymouth Rock, Sussex or Leghorns. The development of hybrid chickens started in the 1950's when there was a hugh growth in the demand for eggs and meat.The most common hybrid is the warren hen which is a classic brown hen.here are a wide variety of hybrid birds available including Black Rock, Maran Cuivre, Bovans Nera, Calder Ranger, Goldline, Meadowsweet Ranger, White Star, Sussex Star, Bluebelle, Speckedlys, Isa Brown. Many of these varierties are breed by specific poultry suppliers.