Two Strains of E

question 71

Multiple Choice

Two strains of E. coli were developed, each of which overproduced an amino acid, either histidine or tryptophan. When grown together in medium with adequate amino acids, they grew but did not associate with each other. When these strains were grown together in medium without histidine and tryptophan, they grew and formed ________ in order to ________.

• A) carboxysomes; share the excess of the two amino acids
• B) carboxysomes; provide ATP to each other to make the missing amino acids
• C) nanotubes; share the excess of the two amino acids
• D) nanotubes; provide ATP to each other to make the missing amino acids
• E) heterocysts; share the excess of the two amino acids

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Definitions:

Direct Approach

A communication strategy that is straightforward and clear, without indirectness or evasion.

Negative Responses

Reactions that express disagreement, dissatisfaction, or other forms of refusal or denial.

Indirect Method

An approach in communication or problem-solving that is not straightforward and uses alternative means, often involving suggestion rather than direct expression.

Delayed

The state of being postponed or running later than scheduled, often causing inconvenience or requiring adjustments.