Question

A hypothetical bacterial colony grows well on minimal media plus mele Select the genotype that most correctly represents this colony. O melk O mel O meis O melt Select the explanation of the genotype. O The colony is sensitive to melezitose. O The colony cannot utilize melezitose as a carbon source.

Answer 1

First Question:

The answer will be mel⁺ (Last option).

Explanation: Melezitose is a sugar molecule that can bacteria used as a source of nutrient. So, bacteria can't be resistant or sensitive to it as this term are related to their relationship with antibiotics. So, we can ignore first & third options (mel^R & mel^S). As bacterial colony grows well in minimal media with addition of melezitose, they are able to utilize melezitose. Thus, they will be mel⁺.

Second Question:

The answer will be the colony can utilize melezitose as a carbon source (Third option).

Explanation: From the previous explanation we already know that the bacteria able to grow on minimal media with addition of melezitose because they can utilize melezitose as carbon source.