Exam 10: Analyzing Genomic Information

For a gene or a locus to be considered polymorphic it must satisfy the following two conditions must be present in

How many bases do deletions, duplications, and insertions most frequency involve?

When a scientist is attempting to use positional cloning to link a disease-causing allele to a molecular marker, it is important for the marker to be close to the disease-causing allele, otherwise _____ may occur.

PCR cannot be successfully performed without

The process of _______ removes amniotic fluid from a pregnant mother to examine fetal cells for genetic problems.

The classical form of the metabolic disease phenylketonuria is caused by a mutation in the gene encoding the enzyme phenylalanine hydroxylase (PAH), which converts phenylalanine to tyrosine.A variant form of phenylketonuria is caused by a mutation in a separate gene that encodes a different enzyme involved in the synthesis of a cofactor needed for PAH to function.Which of the following phenomena is illustrated by these two forms of phenylketonuria?

SSR loci between homologous chromosomes in the same individual _________; SSR loci for the same chromosome in different individuals ________.

Which is the most frequent type of DNA polymorphism?

What is true of DNA arrays?

One consequence of an individual who has compound heterozygosity at the CFTR locus is

In microsatellites, one-, two-, or three-base sequences are repeated about

Which of the following is the main source of variation in microsatellites?

If a PCR amplified sample hybridizes with two allele specific probes, one normal and one mutant sequence, a carrier is identified if

You are working in a lab where you are studying a disease that is known to be caused by a single nucleotide change, although the effect this change ultimately has on the protein's structure/function is unknown.You have DNA samples from multiple patients that you suspect of having this disease.What is the most efficient way to test the samples for the relevant mutation?