Recombinant DNA Technology
The RP13 gene of chromosome 17 codes for a protein __________ .

involved in eye development
that is a component of hair and nails
involved in glucose transport
involved in the determination of personality

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Recombinant DNA Technology
Some genetic diseases cannot be diagnosed by changes in restriction sites. Some of these can be detected by allele-specific oligonucleotide probes. These are

mutagenized copies of a gene
PCR-amplified variable numbers of tandem repeats (VNTRs)
copies of the gene with an altered sequence so that a restriction site is inserted
short sequences that will hybridize only to a specific base sequence

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Recombinant DNA Technology
An expression vector

always contains DNA segments for the regulation of mRNA production
All of these
usually contains a gene that confers antibiotic resistance to the bacterial host
always contains an origin of replication

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