McGraw-Hill Online Learning Center Test

1. Review the image and answer the following questions.

What were Beadle and Tatum studying in this diagram?

A. They were trying to map chromosomes.
B. They were examining the pattern of protein synthesis.
C. They were studying the relationship between genes and metabolism.
D. They were studying the metabolic roles of certain enzymes.

2. What results did Beadle and Tatum find during their studies?

A. Beadle and Tatum found that the genes for enzymes are arranged in the same order in the DNA that they are employed in metabolic pathways.
B. Beadle and Tatum found that a mutant gene produces a defective enzyme.
C. Beadle and Tatum found that the genes for certain enzymes were linked.
D. Beadle and Tatum determined that enzymes are necessary for most reactions to occur.

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