Genetics: From Genes to Genomes
6th Edition
ISBN: 9781259700903
Author: Leland Hartwell Dr., Michael L. Goldberg Professor Dr., Janice Fischer, Leroy Hood Dr.
Publisher: McGraw-Hill Education
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Chapter 2, Problem 33P
Recall that Mendel obtained pure-breeding with either long or short stems and those hybrids had long stems (Fig. 2.8). Monohybrid crosses produced in F2 generation with a 3:1 ratio of long stems to short stems, indicating that this difference in stem length is governed by a single gene. The gene that likely controlled this trait in Mendel’s plants has been discovered, and it specifies an enzyme called G3βH, which catalyze the reaction shown in the accompanying figure. The product of the reaction, gibberellins, is a growth hormone that makes plants grows tall. What is the most likely hypothesis to explain the difference between the dominant allele (L) and recessive allele (l)?
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Chapter 2 Solutions
Genetics: From Genes to Genomes
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