BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 43, Problem 10U
Summary Introduction
The eyes of the vertebrates and the invertebrates are analogous organs that have the same function but have different structures. Eyes are the sensory organ required for visualization purposes. The genes for eye development is the same invertebrates seemed to function normally in the insect genome.
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Which statement about Hox genes is false?
a.
They are expressed in similar patterns in the embryos of both mice and flies.
b.
They include a conserved region of base pairs called the homeobox.
c.
They are arranged in similar clusters of genes in both mice and flies.
d.
They are part of the so-called genetic toolkit.
e.
Because of their important functional roles, they evolved rapidly in both mammals and flies.
Why is it easier to manipulate embryonic stem cells to differentiate into various tissues than it is to manipulate a typical adult cell?
a.
As cells develop, signaling pathways can cause some genes to be turned off during development.
b.
Adult cells have different DNA content than do embryonic stem cells.
c.
Emybronic stem cells pose less of a threat for organ rejection as do an individual s own adult cells.
d.
It is no easier to manipulate emybronic stem cells to differentiate into various tissues than it is to manipulate a typical adult cell.
When in fruit fly development does axes development begin?
A. in the unfertilized egg stage when maternal effect genes deposit mRNA and proteins in specific locations
B. in the early embryo stage when induction signals between neighboring cells identify where the cells are in three-dimensional space
C. in the larval stage when body segments appear, and pattern formation is evident
D. in the pupal stage when a gradient of morphogens is established
Chapter 43 Solutions
BIOLOGY
Ch. 43.1 - Prob. 1LOCh. 43.1 - Prob. 2LOCh. 43.1 - Describe how gated ion channels work.Ch. 43.2 - Prob. 1LOCh. 43.2 - Describe the function of these receptors.Ch. 43.2 - Describe the relationship between thermoreceptors...Ch. 43.3 - Prob. 1LOCh. 43.3 - Prob. 2LOCh. 43.4 - Prob. 1LOCh. 43.4 - Prob. 2LO
Ch. 43.4 - Prob. 3LOCh. 43.5 - Prob. 1LOCh. 43.5 - Prob. 2LOCh. 43.6 - Prob. 1LOCh. 43.6 - Prob. 2LOCh. 43.6 - Prob. 3LOCh. 43.7 - Prob. 1LOCh. 43 - Prob. 1DACh. 43 - Prob. 1IQCh. 43 - Prob. 2IQCh. 43 - Prob. 3IQCh. 43 - Which of these is NOT a method by which sensory...Ch. 43 - Which of the following correctly lists the steps...Ch. 43 - All sensory receptors are able to initiate nerve...Ch. 43 - In the fairy tale, Sleeping Beauty fell asleep...Ch. 43 - The ear detects sound by the movement of a. the...Ch. 43 - Hair cells in the vestibular apparatus of...Ch. 43 - ________ is the photopigment contained within both...Ch. 43 - Which of the following is NOT a method used by...Ch. 43 - Prob. 9UCh. 43 - Prob. 10UCh. 43 - What do the sensory systems of annelids, mollusks,...Ch. 43 - Animals can more easily tell the direction of a...Ch. 43 - Some birds have broader color perception than...Ch. 43 - The ability of some insects, birds, and lizards to...Ch. 43 - Prob. 1SCh. 43 - The function of the vertebrate eye is unusual...Ch. 43 - How would the otolith organs of an astronaut...Ch. 43 - Prob. 4S
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