Deck 8 (slides 40-44) Flashcards
(20 cards)
Sex chromosome disorders reveal there have been no reported instances of babies being born without an ___ chromosome.
X
This indicates that the ___ chromosome contains genes that are vital for the ________ and development of an embryo.
X, survival
These sex chromosome disorders also reveal the ____ chromosome contains a _____-determining region that is necessary to produce ______ male sexual development.
Y, sex, male
In Human DNA analysis, testing for alleles, if 2 prospective parents suspect they might be carrying _______ alleles for a genetic disorder (such as CF or Tay-Sachs), to find out for sure, use a ______ probe, not a karyotype.
Recessive, DNA
Do not use a karyotype because you cannot see the individual ______ on a chromosome.
Genes
Use a DNA probe because Tay-Sachs and CF have slightly _______ DNA sequences for their normal counterparts.
Different
Use labeled DNA probes with specific DNA base sequences that detect __________ base sequences of the disease-causing gene.
Complimentary
Take the DNA sample and add the ______ for the disease gene; if the gene is in the DNA, the probe will ______ to it and ______.
Probe, bind, glow
Other tests search for changes in restriction enzyme ________ sites.
Cutting
Genetic tests are now available for _________ of disorders, making it possible to determine whether prospective parents risk passing such alleles to ________.
Hundreds, offspring
DNA Fingerprinting is done using _____ ____________.
Gel, electrophoresis
Gel electrophoresis does not analyze the cell’s genes because they are largely _______ among people.
Identical
Gel electrophoresis analyzes sections of DNA that have little or no known function (“_______ ______”) because it varies widely from person to person.
Junk, DNA
Gel electrophoresis has been used in the U.S. since the late _______.
1980’s
DNA fingerprinting can be used to determine whether blood, sperm, or other material left at a crime scene matches DNA from the _________.
Suspect
________ = “junk” DNA.
Repeats
The Human Genome project started with sequencing relatively _______ genomes (_______ and _______).
Small, viruses, bacteria
_________ bacteria was sequenced in 1996; as long as the Bio book (4,639,221).
E. coli
Whole sequencing human DNA, at the same time researchers also sequenced the genome of _______ cells and a ______ fly.
Yeast, fruit
In June 2000, scientists announced that a working copy of the Human Genome was essentially _________.
Complete
