Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 27, Problem 6RQ
Which of the following
- abnormal body length or height
- two different eye colors
- the contraction of a genetic illness
- two fewer appendages than normal
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Students have asked these similar questions
During human evolution from proto-Australopithecines to Australopithecines the major differences that were selected for includes:
large increase in brain size
knucklewalking to upright posture
sexual dimorphism
skulls with flattened faces
Which of the following statements about homeobox (hox) genes is FALSE?
Group of answer choices
They direct the development of an overall body plan
They DO vary greatly from species to species and are NOT “highly conserved”
Subtle differences in hox gene action are responsible for physical differences in closely related species.
They DO NOT vary greatly from species to species and ARE “highly conserved”
The human body plan would be most accurately described as having:
asymmetry
radial symmetry
bilateral symmetry
the same plan as a sea sponge
no plan whatsoever
Chapter 27 Solutions
Biology 2e
Ch. 27 - Figure 27.5 If a Hox 13 gene in a mouse was...Ch. 27 - Figure 27.6 Which of the following statements is...Ch. 27 - Figure 27.9 Which of the following statements...Ch. 27 - Which of the following is not a feature common to...Ch. 27 - During embryonic development, unique cell layers...Ch. 27 - Which of the following phenotypes would most...Ch. 27 - Which of the following organisms is most likely to...Ch. 27 - Which of the following is not possible? radially...Ch. 27 - An animal whose development is marked by radial...Ch. 27 - Consulting the modern phylogenetic tree of...
Ch. 27 - Which of the following is thought to be the most...Ch. 27 - As with the emergence of the Acoelomorpha phylum,...Ch. 27 - Which of the following periods is the earliest...Ch. 27 - What type of data is primarily used to determine...Ch. 27 - The time between 542-488 million years ago marks...Ch. 27 - Until recent discoveries suggested otherwise,...Ch. 27 - Plant life first appeared on land during which of...Ch. 27 - Approximately how many mass extinction events...Ch. 27 - Why might the evolution of specialized tissues be...Ch. 27 - Describe and give examples of how humans display...Ch. 27 - How have Hox genes contributed to the diversity of...Ch. 27 - Using the following terms, explain what...Ch. 27 - Explain some of the advantages brought about...Ch. 27 - Describe at least two major changes to the animal...Ch. 27 - How is it that morphological data alone might lead...Ch. 27 - Briefly describe at least two theories that...Ch. 27 - How is it that most if not all, of the extant...
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