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l OM oAR cP SD | 21 95 3 57 5 Midterm Exam
Question 1 Correct
4.00 points out of 4.00
The transfer of genes during bacterial conjugation involves rigid, tubular appendages called .
Select one:
- flagella
- cilia
- fimbriae
- periplasmic flagella (axial filaments)
- sex pili
BIO 250 MIDTERM EXAM 1 UNIT 9 MICROBIAL GENETICS
ACTUAL EXAM WITH ALL QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+/ BIO 250
LATEST MIDTERM EXAM - BRAND NEW!!)
BIO250_Saylor_V5 | Unit 9: Microbial Genetics
Started on April, , 1:12 PM
State Finished
Completed on April, , 1:48 PM
Time taken 36 mins 26 secs Grade 160.00 out of 160.00 (100%)
The process in which mutations are removed and the correct bases added is called .
Select one:
- transduction
- excision repair
- frameshift
- back-mutation
- transformation
Question 2 Correct
4.00 points out of 4.00 1 / 3
l OM oAR cP SD | 21 95 3 57 5 Midterm Exam
Question 4 Correct
4.00 points out of 4.00
A nutrient medium that has all of its chemical components identified and their precise concentrations known and reproducible is termed .
Select one:
- complex
- reducing
- enriched
- defined
Question 5 Correct
4.00 points out of 4.00
Which scientific field is involved in the identification, classification, and naming of organisms?
Select one:
- Nomenclature
- Taxonomy
- Phylogeny
- Pathology
- Epidemiology
https://moodle.straighterline.com/mod/quiz/review.php?attempt=4115816 2/15
The term obligate refers to
Select one:
- the ability to exist in a wide range of conditions.
- existing in a very narrow niche.
- using chemicals for energy production.
- using light for energy production.
- using oxygen for metabolism.
Question 3 Correct
4.00 points out of 4.00 2 / 3
l OM oAR cP SD | 21 95 3 57 5 Midterm Exam
Question 7 Correct
4.00 points out of 4.00
Which of the following is not a benefit of agar as a solid medium?
Select one:
- Flexibility
- Holds moisture
- Can be inoculated and poured at a temperature that is not harmful
- Solid at room temperature
- Easily digested by most microbes
Question 8 Correct
4.00 points out of 4.00
Astrobiology is considered a sub-discipline of microbiology because
Select one:
- life elsewhere in the universe is likely to be microbial.
- microbes are known to exist on other planets.
- all extraterrestrials known are microbial.
- only microbes can reproduce under the extreme conditions in outer space.
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Protozoa are classified into four groups based on .
Select one:
- how they move
- their required nutrients
- the resistance properties of their cysts
- their pathogenicity
Question 6 Correct
4.00 points out of 4.00
- / 3
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