differences in DNA can be exploited Flashcards

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1
Q

define DNA probe

A

a short length of single-stranded DNA that has a known and specific base sequence complementary to part of the target allele which it binds/hybridises to. The probe is usually attached to a radioactive(X-ray)or fluorescent(UV light)label that indicates its position.
It attaches to one DNA strand too.

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2
Q

what are DNA probes used for?

A
  • to locate specific alleles of genes to diagnose genetic disorders
  • identifies health risks which helps determine treatment
  • can be used to inform genetic counselling
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