BIOL 142 Lecture Notes - Lecture 19: Recombinant Dna, Lytic Cycle, Pituitary Stalk
11 Mar 2018
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Biol142 lecture 19: recombinant dna technology i: use of recombinant. Transduction continued material: transduction in bacteria requires viruses (phages) to transfer genetic. In the lytic cycle, the viruses will first start to express early genes that shut down gene expression of the host. Later genes will express proteins needed to make viral parts. The viral genetic material is then packaged within the heads of viruses. When the viral genome is replicated during the lytic cycle, the virus makes many copies of its genome in one long string. Then an enzyme chops this string up into smaller fragments, which get packaged into viral heads. Sometimes a bacterial dna sequence is accidentally packaged into a vesicle head. When this happens, the viral particle will inject the bacterial dna into the next cell that it infects. This bacterial dna will integrate into the chromosomal. Dna of the host to change its genetic makeup.
