Bacteria Chapter 27.2.

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Presentation transcript:

Bacteria Chapter 27.2

What you need to know: Mechanisms that contribute to genetic diversity in prokaryotes, including transformation, conjugation, transduction, and mutation.

Genetic Diversity in Prokaryotes Factors: Rapid reproduction (____________________________) _____________ – errors in replication Genetic ________________________

Genetic Recombination in Bacteria Transformation: uptake of _________________ _______ from surroundings Transduction: ____________ transfer genes between prokaryotes Conjugation: DNA transferred from _________ to ____________________

Transformation Uptake of foreign DNA from surroundings Observed by Griffith (bacteria & mice)

_______________ Small ring of DNA that carries a few genes Replicates ______________________ from bacterial chromosome Can carry genes for ___________________ resistance Used frequently in genetic engineering for gene cloning

AP Bio Lab 6A - Transformation

Using plasmids and bacteria in genetic engineering

Gene Cloning

_______________ Viruses (__________________) carry bacterial genes from one host cell to another Recombine DNA of donor and recipient cell

__________________ One cell _______________ DNA to another Donors cell extends a _________________ (“mating bridge”) through which DNA is transferred Requires the presence of a piece of DNA called the _______________to produce the pilus