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L.O 18 ­ Describe the principles of gene therapy and distinguish between somatic and germ line therapy.

Gene Line Therapy ­ involves altering the alleles inside cells to treat the cause of genetic disorders.
Carrying out gene therapy depends on whether the genetic disorder is caused by a dominant or…

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GENETIC SCREENING ­ analysing DNA to identify alleles for genetic disorders

IDENTIFYING CARRIERS

Genetic screening can be performed on any DNA so it is possible to

take cheek cells, white blood cells or cells obtained from a foetus or

embryo. The DNA is tested to see whether it contains known…

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L.O 19 ­ Explain the uses of genetic screening: identification of carriers using pre-implantation genetic diagnosis and
prenatal testing (amniocentesis and chronic villus sampling) and discuss the implications of prenatal genetic screening

USES OF GENETIC SCREENING
1. Carrier testing is offered to people with family history of genetic disorders
2.…

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L.O 20 ­ Identify and discuss the social and ethical issues related to genetic screening from a range of
ethical view points.

ADVANTAGES OF GENETIC SCEENING
·Early identification of treatable possible treatment for genetic disorder if parents should decide to have a child
·People can make informed decisions
· PIGD…

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