Biology B1.3

Beschreibung

Flashcards covering OCR 21st Century Science's Biology B1.3 Module - part 3 of 4, Testing and treating genetic disorders
raffia.khalid99
Karteikarten von raffia.khalid99, aktualisiert more than 1 year ago
raffia.khalid99
Erstellt von raffia.khalid99 vor mehr als 9 Jahre
751
33

Zusammenfassung der Ressource

Frage Antworten
What are disorders such as Hungtington's disease and Cystic Fibrois caused by? A faulty allele
Which of these two disorders is caused by a dominant allele? - Hungtington's disease - Cystic Fibrosis Hungtington's Disease
What are the symptoms of Hungtington's disease? -Late onset - Tremors - Clumsiness - Memory Loss - Lack of Concedntration - Mood Swings
What are the symptoms of Cystic Fibrosis? - Thick Mucus - Difficulty digesting food - Chest Infections - Difficulty breathing
What is a "carrier" of a disease? A person who carries only one recessive allele for a gene, meaning they do not have the disease themselves but they can pass it on to their children
A is the dominant, Hungtington's Disease allele. a is the healthy allele. What is the % risk of the offspring having and not having Hungtington's disease? having - 75%, not having - 25%
What is pre-implantation genetic diagnosis? -Fertility drugs are taken by a woman to allow her to release several eggs, which the doctor collects. -The eggs are fertilised in a petri dish through IVF -When these embryos reach the 8 cell stage, one cell is removed from each embryo and tested for a disease -Embryos that dont contain the faulty allele are reinserted into the uterus in hopes of producing a healthy baby
What are the ethical issues with preimplantation genetic diagnosis? -False positive/negative results -Get rid of the rest of the embryos - are embryos life? -You should love your children whether they have a disease or not
Name the benefits and risks of testing the fluid surrounding a baby's womb? Benefits - can test for genetic disorders - Can prepare for any genetic disorders - Risks- risk of miscarriage - False positive/negative results - What to do afterwards....abort?
What is predictive testing? + risks / benefits detectc genetic disorders where the symptoms develop later in life, such as Huntington’s disorder. -can be valuable to people who have no symptoms but have a family member with a genetic disorder. -can help to inform decisions about possible medical care. -no / more expensive life insurance
Zusammenfassung anzeigen Zusammenfassung ausblenden

ähnlicher Inhalt

GCSE Biology B2 (OCR)
Usman Rauf
B7 Quiz - The Skeleton, Movement and Exercise
Leah Firmstone
B7.1-3 - Peak Performance
franimal
Biology- Genes and Variation
Laura Perry
B7.5 - New technologies
franimal
Biology Revision - Y10 Mock
Tom Mitchell
Biology- Genes, Chromosomes and DNA
Laura Perry
F211- Module 1 Cells, exchange and transport
eilish.waite
Enzymes and Respiration
I Turner
GCSE AQA Biology 1 Quiz
Lilac Potato
GCSE Biology AQA
isabellabeaumont