You have isolated a prokaryotic cell. The first step in identification is a(n)
A) Gram stain.
B) DNA fingerprint.
C) endospore stain.
D) flagella stain.
E) lactose fermentation test.

Question

Quizplus · Accepted Answer

Gram stain is commonly used as the first step in identifying a prokaryotic cell. It allows the classification of the cell as either Gram-positive or Gram-negative, which helps to narrow down the potential identification options. Other tests such as DNA fingerprinting, endospore staining, and flagella staining are more specific and may require additional information before performing them. Lactose fermentation test is also not specific enough for initial identification.

You Have Isolated a Prokaryotic Cell