Reproductive Technology Flashcards
17th century– 1800s
Observed biology
1950s
Shown that traits are passed down from parents
60s
First ultrasound
1978
First test tube baby
6 prohibited acts
Cloning/creating embryo for any purpose other than reproduction
Maintain embryo outside body more than 14 days post fert.
Screen, select, influence sex selection
Heritable gene alterations
Cross species alterations or transplants
No purchasing or selling
Egg repair
Nucleus of mothers egg is placed in donor egg
Embryo repair
Mother’s egg is fertilized by father’s sperm, parents nucleus is removed and placed in donor embryo
Eugenics
Controlled breeding practices used to improve genetic quality of offspring
Positive eugenics
Healthier babies
Negative eugencis
Increased abortions because people think traits are unfavourable
6 objections to enhancement
Playing god Introducing risks Threats to diversity and humanity Paradoxical counter productivity Misuse and inequality of resources Problems of free choice and autonomy
1927
Virginia ruling to sterilize defective people
Carrie Buck
Became pregnant at 17 and was institutionalized in fear she would pass on her mother’s promiscuity
IVF
Create embryos that have been genetically tested
Genetic testing
Diagnose or predict presence or susceptibility to genetic conditions in people high risk for certain disorders
Genetic screening
Evaluate a person, group or population for prescence or susceptibility to genetic conditions without regard to family history or risk factors
Recombinant DNA
Transfer a DNA fragment from one organism to a self-replicating genetic element
Reproductive cloning
Genetic material is transferred into a donor cell whose material has been removed– egg is stimulated to divide and transferred into surrogate mother
Therapeutic cloning
Human embryos are produced exclusively for research– stem cells and study development
2special properties of stem cells
Ability to self-renew
Ability to differentiate into specialized cells
Embryonic stem cells
Obtained from blastocytes. Undifferentiated and can form multiple tissues
Adult stem cells
Obtained from adult tissue– blood, bone marrow, skin cells, umbilical cord blood
4 viable sources of ESC
Cadaveric fetal tissue
IVF embryos that will now be destroyed
IVF embryos made solely for research
Embryos created asexually through somatic cell nuclear transfer
Genetic treatment
Change genome of person living with genetic abnormality to improve quality and length of life