Human Physiology: An Integrated Approach (7th Edition)
Human Physiology: An Integrated Approach (7th Edition)
7th Edition
ISBN: 9780321981226
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 15, Problem 16CC
Summary Introduction

To determine: The set of blood vessels in which blood will flow back if the left ventricle fails to pump.

Introduction: Heart is a muscular organ that pumps blood to the other parts of the body through the circulatory system. In humans, the heart is divided into four chambers, two atria, and two ventricles.

Summary Introduction

To determine: The organ in which edema will occur.

Introduction: When the fluid or blood traps in the tissues of the body, it makes the organ swelled. This swelling is known as the edema. Edema can be noticed on many parts of the body like legs, hands, abdomen, and so on.

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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:

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Human Physiology: An Integrated Approach (7th Edition)

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