STRAIGHTERLINE MICRO 250 FINAL EXAM PREP
2025/2026 ACCURATE QUESTIONS WITH CORRECT
DETAILED ANSWERS || 100% GUARANTEED PASS
<RECENT VERSION>
Which class of eukaryotic microorganisms can be subdivided into
groups such as Mastigophora, Sarcodina, Ciliophora, and
Apicomplexa?
A. Helminths
B. Algae
C. Protozoa
D. Fungi .......Answer.........Protozoa
,age 2 of 151
Genetic material can be excised from one chromosome and
directly integrated int another via
A. conjugation.
B. transformation.
C. transduction.
D. transposons. .......Answer.........transposons.
Which immune cell secretes numerous cytokines that help to
coordinate the response of other immune cells?
A. B cell
B. TH cell
C. TC cell
,age 3 of 151
D. Platelets .......Answer.........TH cell
Which of the following enzymes are used to amplify DNA during
PCR?
A. restriction endonuclease
B. DNA polymerase
C. reverse transcriptase
D. DNA ligase .......Answer.........DNA polymerase
In the nitrogen cycle, which of the following steps involves
removal of nitrogen from the atmosphere by bacteria?
.......Answer.........nitrogen fixation, In nitrogen fixation, nitrogen is
removed from the atmosphere by nitrogen-fixing bacteria and
converted to ammonia.
, age 4 of 151
If enough h+ ions are added to pure water to raise the H+
concentration of the solution to ten times higher than the original
concentration, what is the resulting OH- concentration of the
solution? .......Answer.........10 -8M
Fungi are able to reproduce asexually by creating
conidiospores and sporangiospores. Which of the following is an
accurate explanation for why it is advantageous that they are
also capable of sexual reproduction?
Select one:
a. Asexually produced offspring are more likely to compete for
resources and will kill off the parental fungi.
b. Fungi normally produce sexually but produce asexually in
harsh conditions such as severe drought.