About Tyrannosaurus. Tyrannosaurus is a large, bipedal carnivore that lived approximately 66 to 68 million years ago during the late Cretaceous Period. It is considered to be one of the largest carnivorous dinosaurs to have ever walked the Earth and its very name means âtyrant lizardâ. It was first discovered in 1902 by Barnum Brown.
Transcription. Definition. noun. It is the process of transcribing or making a copy of genetic information stored in a DNA strand into a complementary strand of RNA (messenger RNA or mRNA) with the aid of RNA polymerases.Supplement.t is the process of transcribing or making a copy of genetic information stored in a DNA strand into a complementary strand of RNA (messenger RNA or mRNA) with the aid of RNA polymerases.
The newly formed mRNA copies of the gene then serve as blueprints for protein synthesis during the process of translation. Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.ranscription is carried out by an enzyme called RNA polymerase and a number of accessory proteins called transcription factors. Transcription factors can bind to specific DNA sequences called enhancer and promoter sequences in order to recruit RNA polymerase to an appropriate transcription site.