EBK LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 8220103935432
Author: Sadava
Publisher: MAC HIGHER
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Chapter 28.4, Problem 1R
Summary Introduction
To review:
The name of three medicinal plants and their uses for humans.
Introduction:
Plants play multiple roles in nature. They impart ecological services by producing oxygen and clear the atmosphere by removing carbon dioxide. They are an important part of the food chain. Apart from ecological services, they also have economic uses like for making furniture, for shipbuilding, and as medicines.
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*Example 2: Tracing the path of an autosomal dominant trait
Trait: Neurofibromatosis
Forms of the trait:
The dominant form is neurofibromatosis, caused by the production of an abnormal form of the protein
neurofibromin. Affected individuals show spots of abnormal skin pigmentation and non-cancerous
tumors that can interfere with the nervous system and cause blindness. Some tumors can convert to a
cancerous form. i
The recessive form is a normal protein - in other words, no neurofibromatosis.moovi
A typical pedigree for a family that carries neurofibromatosis is shown below. Note that carriers are not
indicated with half-colored shapes in this chart. Use the letter "N" to indicate the dominant neurofibromatosis
allele, and the letter "n" for the normal allele.
Nn
nn
nn
2
nn
Nn
A
3
N-
Chapter 28 Solutions
EBK LIFE: THE SCIENCE OF BIOLOGY
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