Final answer:
Some microorganisms can produce different colors when they grow, such as yellow, pink, purple, or red. For example, Pseudomonas spp. can produce a variety of blue-green pigments, and some may produce fluorescein, which fluoresces green under ultraviolet light.
Step-by-step explanation:
Yes, some microorganisms can produce different colors. Many bacteria produce intracellular pigments that cause their colonies to appear a distinct color, such as yellow, pink, purple, or red. Some bacteria do not produce any pigment and appear white or gray.
This pigmentation can be observed when growing bacteria in a laboratory as distinct colors in their colonies. For example, Pseudomonas spp. can produce a variety of blue-green pigments, and some may produce fluorescein, which fluoresces green under ultraviolet light.
So, the correct answer is option 1 - Yes, it allows all types of microorganisms to grow and produce a new color.