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a) down's syndrome b) cystic fibrosis c)hunington's disease d) phenylketonuria(pku disease) e)none

2007-03-26 09:54:01 · 4 answers · asked by kimzzz 1 in Science & Mathematics Biology

4 answers

The answer is e. The rest are not sex-linked, caused by mutations or error is chromosomal serparation, like trisomy (as in the case of down's syndrome).

2007-03-26 10:08:28 · answer #1 · answered by Kasheia W 2 · 0 0

none.down's syndrome is by trisomy of the autosome 21. huntingtons is an autosomal dominant disease.. pku is also an autosomal recessive inborn error of metabolism of chr 11.i think. cystic fibrosis is also an autosomal recessive disorder.

2007-03-26 10:07:57 · answer #2 · answered by rara avis 4 · 0 0

(e) none

Down's syndrome is caused by nondisjunction and is not inherited.

Cystic fibrosis and PKU are autosomal recessive diseases.

Huntington's disease is an autosomal dominant disease.

2007-03-26 10:01:42 · answer #3 · answered by Yggdrasil 2 · 0 0

i know that it is not a b or d but i don't know about c...

2007-03-26 09:59:40 · answer #4 · answered by Anonymous · 0 0

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