Transcription begins when an enzyme called RNA polymerase attaches ... RNA is made in a single-stranded, nonhelical form. (Remember, DNA is almost always in a double-stranded helical form.) ...

Once transcription is initiated, the DNA double helix unwinds and RNA polymerase reads the template strand, adding nucleotides to the 3′ end of the growing chain (Figure 2b). At a temperature of ...

DNA is a complex molecule that consists of two strands coiled around each other to form a double helix structure ... genetic information in DNA is copied into a complementary RNA strand. RNA ...

Enzymes called RNA polymerases ... within DNA to the ribosomes, where the genetic information is synthesized into proteins. There are a variety of different types of RNA polymerases that can ...

Biology lectures teach students that when a cell’s replication machinery comes together, DNA polymerase takes off down the double-helix like a car on a highway ...

The other primer anneals to the newly synthesized DNA strand and RT creates a ds DNA molecule with the T7 RNA polymerase which ... signal is emitted. ds: Double-stranded; RT: Reverse transcriptase.