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.
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.ee also: RNA, protein synthesis. User Contributions / Comments: Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase.