BIO 205 FINAL EXAM NEWEST ACTUAL QUESTIONS

BIO 205 FINAL EXAM NEWEST ACTUAL / QUESTIONS

AND ANSWERS.VERIFIED/GRADED A+

You have isolated a bacterium that grows in a medium containing an organic substrate and nitrate in the absence of oxygen. The nitrate is reduced to nitrogen gas. This bacterium is ________. - ----Answers__using anaerobic respiration

How many properties of vectors are there? - ----Answers__4

What do you call the science of determining what all of the proteins are expressed in a cell? - ----Answers__Proteomics

Which of the following groups of microorganisms has the rRNA loop present - ----Answers__Bacteria

Which of the following is a Class? - ----Answers__Mammalia

Why are the use of gram staining and acid fast staining used in a clinical setting? - ----Answers__They are quick and provide a good starting point for testing and information

What technique is used to identify bacteria in a sample without culturing the bacteria? - ----Answers__Flow cytometry

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Ames test procedure - ----Answers__Test tube with a buffer and test chemical is incubated for 20 mins at 37 degree celsius as well as controlled cultures (one known to be positive).

Agar is added and mixed then poured on dish with a bacterial medium.

Bacteria will grow in presence of a positive and have undergone reverse mutation.

Colonies counted 2 days after.

Horizontal gene transfer - ----Answers__occurs between different species

Vertical gene transfer - ----Answers__the transfer of genetic material is from parents to offspring

• properties of vectors - ----Answers__1.most important

property of a vector is self-replication, and once in a cell, the vector must be capable of replicating.

2.Vectors must be able to recognize sequence for a restriction enzyme, a unique genetic marker that we can identify once enters the host cell 3.should be small in comparison to host chromosome

• Plasmids, artificial chromosomes, and viruses are used as

vectors.

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