Laboratory Manual for Anatomy and Physiology, 6e Loose-Leaf Print Companion
Laboratory Manual for Anatomy and Physiology, 6e Loose-Leaf Print Companion
6th Edition
ISBN: 9781119304142
Author: Connie Allen, Valerie Harper
Publisher: WILEY
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Chapter 20, Problem 12BS
Summary Introduction

Introduction: The diencephalon is the central region of the brain and it contains three regions, namely thalamus, hypothalamus, and epithalamus. The hypothalamus is located just inferior to the thalamus and it is the pituitary gland. The hypothalamus has major functions in controlling many body functions in secreting hormones. 

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…
Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:

Chapter 20 Solutions

Laboratory Manual for Anatomy and Physiology, 6e Loose-Leaf Print Companion

Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - _______________ Ch. 20 - ______________________________________ Ch. 20 - Prob. 17BSCh. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - ______________________________________ Ch. 20 - _______________ Contains vital centers that...Ch. 20 - _______________ Smoothes and coordinates skilled...Ch. 20 - Prob. 3FBRCh. 20 - _______________ Controls and integrates the...Ch. 20 - _______________ Interprets sensory input, controls...Ch. 20 - _______________ Helps control breathing; conducts...Ch. 20 - _______________ Relays all sensory input to the...Ch. 20 - _______________ Coordinates visual and auditory...Ch. 20 - _______________ Coordinates gross, automatic...Ch. 20 - _______________ White fiber tracts communicating...Ch. 20 - The sites of CSF formation are the...Ch. 20 - special tiny capillaries located in the walls of...Ch. 20 - special tiny capillaries located in the walls of...Ch. 20 - special tiny capillaries located in the walls of...Ch. 20 - Prob. 5FCFCh. 20 - The two lateral ventricles are separated by a thin...Ch. 20 - CSF flows by cilia movement from the two lateral...Ch. 20 - Prob. 8FCFCh. 20 - Prob. 9FCFCh. 20 - CSF continues to flow into the inner part of the...Ch. 20 - CSF continues to flow into the inner part of the...Ch. 20 - Because CSF is continually being made at the rate...Ch. 20 - The venous sinus that overlies the brain...Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ___________________________________________ Ch. 20 - ______________________________________ Ch. 20 - _______________________________________ Ch. 20 - _______________________________________ Ch. 20 - _______________________________________ Ch. 20 - Prob. 20UYK
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