Autosomal Dominant Traits

clairegillian95
Mind Map by clairegillian95, updated more than 1 year ago
clairegillian95
Created by clairegillian95 almost 6 years ago
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Description

First year Genetics & Society (Origin of Phenotype) Mind Map on Autosomal Dominant Traits, created by clairegillian95 on 04/01/2014.

Resource summary

Autosomal Dominant Traits
1 Marfan Syndrome
1.1 Arm span always exceeds height
1.2 Arachnodactyly
1.3 Tall, thin phenotype
1.4 Loose-jointedness
1.5 Abnormal curvature of the spine
1.6 Enlarged aorta (aneurysm)
1.7 The gene associated with Marfan Syndrome encodes the protein fibrillin
1.7.1 Fibrillin creates a sheath around the elastin fibbers found in connective tissue
1.7.2 The gene that encodes fibrillin is found on chromosome 15
1.8 If a person has one copy of the defective allele, the Marfan Syndrome phenotype will be seen
1.9 Autosomal dominant disorder
2 Tennessee Fainting Goats
2.1 These goats become stiff and fall over when startled
2.2 Often called wooden-leg goats or stiff-leg goats
2.3 These goats have an autosomal dominant condition called Myotonia
2.3.1 The Myotonia gene encodes a chloride channel protein found in muscle cells
3 Cloverleaf Tongue
3.1 Rare dominant trait
3.2 An individual with this trait is most likely heterozygous
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