BIO 250 Graded Exam 1 (1st attempt) Straighterline

6/5/2018 Graded Exam 1

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Started on Friday, June 1, 2018, 7:24 AM
State Finished
Completed on Friday, June 1, 2018, 8:30 AM
Time taken 1 hour 5 mins
Overdue 5 mins 3 secs
Grade 63.00 out of 90.00 (70%)
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Question Which group of microbes contains organisms necessary for production of wine and
1 bread?
Correct
Select one:
4.50 points out
a. Bacteria
of 4.50
b. Archaea

c. Fungi

d. Algae




The correct answer is: Fungi




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, 6/5/2018 Graded Exam 1
Question Scientists study microorganisms on Earth today to search for life forms elsewhere, as
2 well as to explore the origins of life on Earth. These microorganisms that are studied
Correct are referred to as:

4.50 points out
Select one:
of 4.50
a. existing.

b. extant.

c. extinct.

d. extirpated.



The correct answer is: extant.




Question Antiseptic surgery was pioneered by

3 Select one:
Correct
a. Pasteur.
4.50 points out
b. Lister.
of 4.50

c. Jenner.

d. Kitasato.



The correct answer is: Lister.




Question Each of the following provides evidence in support of the primary role of RNA in the
4 evolution of life EXCEPT:
Correct
Select one:
4.50 points out
a. Some RNA molecules are catalytic.
of 4.50
b. RNA catalyzes peptide bond formation during protein synthesis.

c. ATP (energy currency of the cell) is a ribonucleotide.

d. RNA is less chemically stable than DNA.

e. RNA can regulate gene expression.




This study source was downloadedThe correct answer
by 100000824189183 from is: RNA is less
CourseHero.com chemically
on 04-20-2022 stable
05:58:28 GMTthan
-05:00DNA.

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