EBK ESSENTIALS OF HUMAN ANATOMY & PHYSI
EBK ESSENTIALS OF HUMAN ANATOMY & PHYSI
12th Edition
ISBN: 8220103633604
Author: KELLER
Publisher: PEARSON
Question
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Chapter 14, Problem 41CT
Summary Introduction

Case summary:

John stumbled and fainted after chopping the wood on a hot and breezy afternoon. He was perspiring and his pulse was rapid and faint.

Characters in the case:

John, who had fainted and his pulse rate was rapid.

Adequate information:

John chops the wood for two hours and then stumbles and faints in the house. The T-shirt is wet with sweat and the pulse is faint and rapid.

To determine:

The condition responsible for fainting of John, whether it was heat stroke or heat exhaustion, and the remedy for John’s recovery.

Given information:

John faints after chopping wood for about two hours on a hot but breezy afternoon. The T-shirt is wet with sweat and the pulse is faint and rapid.

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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 14 Solutions

EBK ESSENTIALS OF HUMAN ANATOMY & PHYSI

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