Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 14 - From DNA to Protein: Gene Expression - 14.1 - Genes Code for Proteins - 14.1 Recap - Learning Outcomes - Page 291: 2

Answer

By cultivating different mutant organisms in the presence of various compounds believed to be intermediates in the biosynthetic pathway, Beadle and Tatum categorized each mutation according to their effects on different enzymes. The observations are as follows. Strain 3 can't complete conversion 1, unless given enzyme A, B, C Strain 2 can't complete conversion 2, unless given enzyme B, C Strain 1 can't complete conversion 3, unless given enzyme C

Work Step by Step

By cultivating different mutant organisms in the presence of various compounds believed to be intermediates in the biosynthetic pathway, Beadle and Tatum categorized each mutation according to their effects on different enzymes. The observations are as follows. Strain 3 can't complete conversion 1, unless given enzyme A, B, C Strain 2 can't complete conversion 2, unless given enzyme B, C Strain 1 can't complete conversion 3, unless given enzyme C
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