Assume new mutation rate at both loci is negligible. Draw a map of the Doris's two X chromosomes. This phenomenon is referred to as A. Anticipation B. Variable age of onset C. Heteroallelism D. Sex influenced inheritance E. Incomplete penetrance 25. Assume that this is a rare trait. E. Heteroallelism 27.
Nitrous acid deaminates a cytosine base to uracil which can base pair with adenine.
A. intron B. exon C. enhancer D. TATA box E. translational start site 30. B. RFLP is not linked to the disease gene. C. RFLP actually causes the genetic disease. D. exact underlying biochemical defect of the genetic disease is known. E. entire DNA sequence of the disease gene is known.