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Chapter4 Heredity and variation of bacteria

Chapter4 Heredity and variation of bacteria

Chapter4 Heredity and variation of bacteria. outline. Concepts Genetic materials of bacteria Mechanism of variation. concepts. Heredity Variation Genotypic variation Phenotypic variation. Variation of bacteria. Variation in morphology and structure lose capsule (Pneumococcus) H O

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813 views • 51 slides
Genetic exchange

Genetic exchange

Genetic exchange. Mutations Genetic exchange: three mechanisms Transposons. Mutations and Adaptation. In the course of DNA replication mutations can arise in the bacterial genome.

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781 views • 31 slides
Bacterial Genetics

Bacterial Genetics

Bacterial Genetics. Asexually reproducing (binary fission) High reproductive rates/short generation spans Variation in bacteria mainly caused by mutation Our variation mainly caused by recombination of existing alleles. Sources:.

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1.23k views • 25 slides
Bacterial genetics

Bacterial genetics

Bacterial genetics. Gram-positive bacteria transform DNA using a transformasome complex. Figure 9.1. Gene Transfer by Conjugation. Conjugation is the transfer of DNA from one bacterium to another, following cell-to-cell contact.

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775 views • 24 slides
Transformation

Transformation

Transformation. A DNA fragments/plasmids of donor bacteria Taken up & incorporated into the genome of recipient cell Natural competence Streptococcus pneumoniae, Haemophilus influenzae, Neisseria gonorrhoea Induced competence Cold CaCl 2 & heat shock: E. coli

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139 views • 4 slides

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