Multiple Choice
Stable isotope probing (SIP) is a method that
A) causes cells that hybridize with a fluorescent probe to fluoresce under UV light.
B) compares the isotopic ratios of different compounds in the environment to determine whether they are of biological or geological origin.
C) uses substrates containing heavy isotopes to label the DNA of organisms that use those substrates.
D) compares the transcription of specific isotope labeled genes under different conditions.
Correct Answer:

Verified
Correct Answer:
Verified
Q1: Pure cultures can be obtained from an
Q3: What are activity measurements?<br>A) Activity measurements are
Q4: In natural samples it is often difficult
Q5: The Winogradsky column is a method for
Q6: In an agar dilution tube, microbial colonies
Q7: Organisms in natural environments can be detected
Q8: Which approach would help to identify biologically
Q9: The methodology of microbial ecology includes<br>A) enrichment
Q10: Why is it necessary to have a
Q11: Well-designed microbial activity measurements can reveal _