BIO 1406/07 W/CONNECT/LM NEW >IC<
16th Edition
ISBN: 9781260075762
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 25, Problem 5U
The Brachyury and Thx5 in vertebrates and the Ap3 gene in flowering plants
a. are examples of Hox genes.
b are examples of co-opting a gene for a new function.
c. are homologues for determining the body plan of eukaryotes.
d. help regulate the formation of appendages
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Insect wings are coded for by the same gene that creates...
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B. Their cuticle
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D. parts of crustacean appendages, like legs
An organism has a relatively large number of Hox genes in its genome. Which of the following is true
of this organism?
Select one:
А.
Its Hox genes cooperate to bring about sexual maturity at the proper stage of development.
В.
Most of its Hox genes owe their existence to gene fusion events.
С.
The organism must have multiple paired appendages along the length of its body.
D.
These genes are fundamental, and are expressed in all cells of the organism.
E.
The organism has the genetic potential to have a relatively complex anatomy.
Signal transduction pathways are important mechanisms for cell-to-cell communication in multicellular organisms. How do the target cells typically respond when they receive signals from neighboring cells during very early stages of embryo development?
A. The target cells move to one of the poles to establish the anterior-posterior body axis.
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C. The target cells stop dividing so the neighboring cells have time to get to the same stage of development.
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Chapter 25 Solutions
BIO 1406/07 W/CONNECT/LM NEW >IC<
Ch. 25 - Heterochrony is a. the alteration of the spatial...Ch. 25 - Vast differences in the phenotypes of organisms as...Ch. 25 - Homoplastic structures a can Involve convergence...Ch. 25 - Hox genes are a. found in both plants and animals....Ch. 25 - The Brachyury and Thx5 in vertebrates and the Ap3...Ch. 25 - Which of the following statements about Pax6 is...Ch. 25 - Which of the following statements about TbxS is...Ch. 25 - Prob. 8UCh. 25 - Transcription factors are a. genes. b. sequences...Ch. 25 - Independently derived mutations of the CTC gene in...
Ch. 25 - Prob. 1ACh. 25 - Prob. 2ACh. 25 - The Eda allele that causes reduced armor...Ch. 25 - Prob. 4ACh. 25 - The paired-like homeodomain transcription factor 1...Ch. 25 - From the chapter on evolution of development it...Ch. 25 - Phenotypic diversity among major groups of...Ch. 25 - Critique the argument that eyes have multiple...Ch. 25 - Prob. 5SCh. 25 - Having read all of this chapter return to the clam...
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