Beadle and Tatum Irradiated Neurospora and Initially Grew the Mutant

question 50

Multiple Choice

Beadle and Tatum irradiated Neurospora and initially grew the mutant strains on complete medium.How were they able to determine what type of mutation each strain had?

• A) By growing the mold on a complete medium with extra vitamins and nutrients.
• B) By growing the mold on minimal media supplemented with different combinations of amino acids, vitamins, etc.
• C) By growing the mold in its diploid form to see which traits were masked.
• D) By comparing Neurospora to other species of mold.
• E) By observing the marked differences in morphology between the different strains.

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Definitions:

Total Resistance

The overall opposition to electric current flow in a series circuit, calculated by summing the resistance values of all components.

Series Circuits

Electrical circuits in which components are connected end-to-end, so that there is only one path for current flow.

Voltage Drop

The reduction in voltage in a part of a circuit due to resistance or impedance, seen in the difference in voltage across a component or conductor.

Santa Elena

A historical Spanish settlement and military fort on Parris Island in present-day South Carolina, notable during the 16th century as part of Spain's effort to colonize the southeastern U.S.