Week 3_Systematic Bacteriology

_______ is an evolutionary tree or a branching diagram or tree showing the "inferred" evolutionary relationship among various biological species or other entities

• Line graph

• Cladistic

• Phylogenetic

What is the common ancestor of letters A, B, C, D and E?

• 1

• 2

• 3

• 4

What is the common ancestor of C and D?

• 1

• 2

• 3

• 4

Based on the sequences given, which is the most related to the bacteria X?

Bacteria X: GGC ACG TTA ATT GGC

bacteria A: GGC ATT CCG ATT GGC

bacteria B : GTC ACG TCC AGG CCA

bacteria C: GGC TCG TTA ATT GGC

bacteria D: GGC ACG TTA ATT TTA

• A

• B

• C

• D

Microorganisms do not generally reproduce sexually, therefore species are usually defined by phenotypic and genotypic characterisation

• True

• False

In an approach called _______ taxonomy, relatedness is determined by a wide range of phenotypic and genotypic information

• Polytypic

• Polygenetic

• Polyphasic

• Polyphenetic

Which of the following is NOT a characteristic of the phylum Proteobacteria?

• the phylum contains 5 classes

• they are the largest group of bacteria

• they are all Gram negative

• Staphylococcus is in this phylum

E. coli belongs to which class of phylum Proteobacteria?

• Gammaproteobacteria

• Alphaproteobacteria

• Betaproteobacteria

• Deltaproteobacteria

Which bacterial phylum belongs to 'low G+C Gram positive' bacteria?

• Proteobacteria

• Fermicutes

• Actinobacteria

• Cyanobacteria

Photosynthetic, nitrogen fixing, similar to chloroplasts. Which phylum belongs to these characteristics?

• Proteobacteria

• Cyanobacteria

• Actinobacteria

• Fermicutes