Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 12 - Patterns of Inheritance - 12.2 Monohybrid Crosses: The Principle of Segregation - Data Analysis: 1

Answer

1:1 for heterozygous purple:homozygous white for genotype 1:1 purple: white for phenotype

Work Step by Step

Since the purple F1 has one dominant allele and one recessive allele, and the white flowered plant has only white alleles, the ratio in the purple F1 will control the results, leading half of the time to purple heterozygous plants in the next generation and half of the time to white homozygous plants. Purple heterozygous plants have purple flowers for their phenotype since purple is dominant.
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