Dictionary » A » Achondroplasia



(Science: paediatrics) a birth deformity characterised by imperfect bone formation. It results in dwarfs with normal-sized heads but short arms and legs.

Origin: gr. Plassein = to form

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Why do healthy people have children with genetic illnesses?

Dwarfism can and most often does occur in families where both parents are of average height. In fact, 4 out of 5 of children with achondroplasia are born to average-size parents.

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by kehussy
Sat Feb 18, 2012 7:17 am
Forum: Genetics
Topic: Why do healthy people have children with genetic illnesses?
Replies: 3
Views: 1993

Re: Experimental evidence for evolution

... 100,000 cells or gametes. These range from 0.00004 for streptomycin resistence in E. coli to 12 for yellow body in fruit flies and 4.2-14.3 for achondroplasia in humans. (Source: Evolution by Douglas J. Futuyma, 2005, Sinauer Associates, p. 171) Steve

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by StevePush
Thu Oct 21, 2010 3:57 pm
Forum: Evolution
Topic: Experimental evidence for evolution
Replies: 103
Views: 195372

Dominant/recessive gene

Hi there! Could someone please explain how we define say someone showing the trait of polydactyly/achondroplasia as having the dominant allele/or saying that 99.99% of people show the rexessive allele-why dont we just say like other traits eg left hand that the above inheritances ...

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by biology_06er
Tue Apr 11, 2006 10:04 am
Forum: Genetics
Topic: Dominant/recessive gene
Replies: 2
Views: 2196

Have some questions

... please explain. #3. There is a disorder that causes short stature commonly known as "Dwarfism" and genetically referred to as "Achondroplasia". Dwarfism is an autosomal dominant trait. If a mother has Dwarfism and the father has normal height, Answer the following Questions: ...

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by bleet
Sun Feb 05, 2006 7:02 pm
Forum: Genetics
Topic: Have some questions
Replies: 9
Views: 4992

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