Lederberg and Tatum's Landmark Experiment Showed That Gene Transfer Could

question 22

Multiple Choice

Lederberg and Tatum's landmark experiment showed that gene transfer could occur between bacteria,by mixing two strains of bacteria.One strain of bacteria could not synthesize methionine or biotin,but was capable of synthesizing threonine and proline.The other strain was able to synthesize methionine and biotin,but was not capable of synthesizing threonine and proline.Only when these strains were mixed together would they grow on agar that lacked these compounds.What negative control would Lederberg and Tatum have used to ensure that their experiments were accurate?

• A)A bacteria that could synthesize methionine,biotin,threonine,and proline.
• B)A bacteria that could not synthesize methionine,biotin,threonine,or proline.
• C)An agar media that contained methionine,biotin,threonine,and proline.
• D)An agar medium that lacked methionine,biotin,threonin,proline,and other nutrients that all bacteria require to grow (e.g.glucose).
• E)A plate that contained no bacteria

Recognize the importance of precise word choice for clarity in written communication.

Understand the process of choosing the right word based on the context of a sentence.

Understand how to organize information based on spatial order.

Comprehend the process of arranging sentences in logical time order.

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Definitions:

Maintenance Of Culture

Maintenance of culture involves the practices and norms that help to preserve and transmit cultural beliefs, values, and identities across generations.

Liberation

The act of setting someone free from imprisonment, slavery, or oppression; release.

Empowerment

The process of gaining strength, confidence, and autonomy to make decisions and take control over one's life and outcomes.

Cultural Resonance

Cultural resonance occurs when a concept, event, or product garners widespread relevance or identification within a particular culture.