Huntington's disease is caused by:

a. a rare recessive allele.
b. a repeat of a nucleotide triplet in a gene.
c. a monosomic condition.
d. a dominant X-linked allele.
e. a deletion of part of chromosome 4.


B

Biology & Microbiology

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Which of the following two terms relate most closely to split genes?

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Why are enzymes considered important biological catalysts?

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