Which Factor Is Consistent with Multifactorial (Complex) Genetic Disease

question 9

Multiple Choice

Which factor is consistent with multifactorial (complex) genetic disease?

• A)Expression of the trait often involves mutations in several genes.
• B)Monozygotic (identical) twin concordance is 100%.
• C)Genotype consistently predicts phenotype.
• D)It tends to be autosomal dominant.

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Definitions:

Thymine

One of the four nucleobases in the DNA molecule represented by the letter T, pairing with adenine (A).

Guanine

One of the four main nucleobases found in DNA and RNA, which pairs with cytosine in double-stranded DNA.

DNA Codon

A sequence of three nucleotides in DNA that specifies the inclusion of a particular amino acid in a protein or indicates a start or stop signal in protein synthesis.

RNA Codon

A sequence of three nucleotides in RNA that specifies the addition of a specific amino acid during protein synthesis.