Campbell Biology Custom Stony Brook 10 Th Edition
Campbell Biology Custom Stony Brook 10 Th Edition
10th Edition
ISBN: 9781269870818
Author: Reece Urry Cain Wasserman Minorsky Jackson
Publisher: PEARSON
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Chapter 35, Problem 5TYU

Supposc a flower had normal expression of genes A and C and expression of gene B in all four whorls. Based on the ABC hypothesis, what vvould be the structure of that flower, starting at the outermost whorl?

  • (A) carpel-petal-petal-carpel
  • (B) petal-petal-stamen-stamen
  • (C) sepal-carpel-carpel-sepal
  • (D) sepal-sepal-carpel-carpel
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Explain how (a) the absence of class B gene expression produces the flower structures seen in class B mutants (see Figure 22.15c) and (b) the absence of class C gene expression produces the structures seen in class C mutants (see Figure 22.15d).
Key features of seed plants facilitating life on land include threeof the following four traits. Select the exception.(A) homospory(B) pollen(C) reduced gametophytes(D) seeds
Using just the 'ABC model' of floral development what would you need to change in terms of genes or gene expression to get male only flowers, but still have 3 different floral whorls in total?  Then what would you need to change to get female flowers and again have three different floral whorls in total?
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Plant Reproduction in Angiosperms; Author: Amoeba Sisters;https://www.youtube.com/watch?v=HLYPm2idSTE;License: Standard YouTube License, CC-BY