Genetics and genomics for healthcare www.geneticseducation.nhs.uk © 2012 NHS National Genetics Education and Development Centre Genetic testing: What is.

Slides:



Advertisements
Similar presentations
What are some causes of birth defects?
Advertisements

© 2009 NHS National Genetics Education and Development CentreGenetics and Genomics for Healthcare X-Linked Recessive Inheritance.
© 2009 NHS National Genetics Education and Development CentreGenetics and Genomics for Healthcare Segregation of Alleles in.
© 2009 NHS National Genetics Education and Development CentreGenetics and Genomics for Healthcare X Linked Inheritance Transmission.
© 2009 NHS National Genetics Education and Development CentreGenetics and Genomics for Healthcare This PowerPoint file contains.
Collecting family history information This presentation can be used as part of Lesson Plan 3 Taking and Drawing a Family History. It can also be used with.
Medical Genetics 2 Prof Duncan Shaw.
X-LINKED INHERITANCE WHERE THE MOTHER IS A CARRIER
Supporting Genetics Education for Health Practical Genetics for Primary Care Kate May Genetic Counsellor Nottingham Clinical.
B1 Revision – You and Your Genes
Genetics and inheritance Questions with true or false answers
Genetics and genomics for healthcare © 2014 NHS National Genetics and Genomics Education Centre Why is genetics relevant to.
Genetics.
X-linked dominant inheritance: the basics a tutorial to show how the genes segregate to give the typical pedigree pattern Professor P Farndon, Clinical.
Monogenic disorders risk calculations seminar No 425 Heredity.
GENETIC DISORDERS & DISEASES. Types?  Dominant  Recessive  Sex Linked  Chromosomal  Mutagens?
Genetic Screening for Cystic Fibrosis A New Choice for You and Your pregnancy.
Genetics and genomics for healthcare © 2013 NHS National Genetics and Genomics Education Centre Passing on genetic information.
Genetic counselling Mary Porteous
INHERITED GENETIC DISORDERS
Sex Linked Inheritance: (why females are superior to males) (just kidding) (no, but seriously) (ok, I am kidding) (or am I?)
Sex-Linked Inheritance.
IN Today we will be studying several common genetic disorders inherited by humans. How do you think a FAMILY is impacted when a child in the family is.
All will know which chromosomes make a boy and which chromosomes make a girl. Most will be able to explain what a genetic counsellor is. Some will understand.
PATIENT CONCERNS & GENETIC TESTING
Chapter 14: Genetic Screening and Counselling. Higher Human Biology Unit 1: Cell Function and Inheritance 07/09/20151Mrs Smith: Ch14: Genetic Screening.
Genetics for GPR’s Thank you for inviting me… Susan Fairgrieve Principal Genetic Counsellor.
Sex linked genes.
Case study 1 Helen wants a child. She isn't aiming to create a perfect child but she wants to undergo genetic selection treatment. Helen has a problem.
Two copies of each autosomal gene affect phenotype.
HUMAN GENETICS. Objectives 2. Discuss the relationships among chromosomes, genes, and DNA. 2.8 Examine incomplete dominance, alleles, sex determination,
X-linked recessive inheritance where the mother is a carrier: the basics a tutorial to show how the genes segregate to give the typical pedigree pattern.
Sex-Linked Inheritance
Human Genetics.
A man and a woman marry. The man is colorblind, which is an X-linked disease. They have 4 children, 2 carrier daughters , 1 completely healthy boy and.
Supporting Genetics Education for Health Practical Genetics for Primary Care 6 th February 2013 Kate Carter Genetic Counsellor.
Sex Determination Sex determined by genes found on the X and Y chromosome Females: egg produced with an X chromosome Males: ½ sperm cells contain X;
Sex-Linked Inheritance.  Genetically, what determines whether a fetus is a boy or girl?  Who determines gender, Mom or Dad? Explain.
02 Genetic testing FT. 4 2 Some disorders are inherited. One of these disorders is Huntington’s disease. (a) Complete the sentences to show how Huntington’s.
Problem 1 A young woman consults a geneticist during her first pregnancy. Her brother was previously diagnosed with Duchenne muscular dystrophy and had.
A disease that prevents the blood from clotting properly. It is a genetic disorder, meaning it’s the result of a change in genes that were inherited.
X-linked recessive inheritance where the father is affected: the basics a tutorial to show how the genes segregate to give the typical pedigree pattern.
A genetic disorder is an illness caused by one or more abnormalities in the genome, especially a condition that is present from birth (congenital). Most.
Pedigree.
Bonus Question 1 Out in the Wild West, you spot a group of wild horses. Some horses in the group have black coats, some have white coats, and some appear.
Detection of heterozygotes
Pedigree Charts A quick refresher for the teacher on important terms:
Monogenic Disorders Genetic Counselling
Interest Grabber A Family Tree
Pedigrees in Human Genetics
X-linked recessive inheritance
Monogenic Disorders Case Studies
The family tree of genetics
Sex Linked Inheritance
Genetic Testing Result Means. Before Genetic Testing  The result of genetic testing can be life changing.  It is important for patients and their families.
INHERITED GENETIC DISORDERS
Chromosomes, Autosomes and Sex chromosomes
Genetic Counselling.
Different mode and types of inheritance
Genetic Testing.
The family tree of genetics
What is a pedigree chart?
The family tree of genetics
14.2 – Human Chromosomes.
Chapter 7 Mendel’s Laws Predict the inherited traits
Pedigree tips for autosomal genetic diseases Determine whether the trait of interest is dominant (A) or recessive (a) Label the genotypes.
Sex Chromosomes Determine sex of individual XX= Female, XY= Male
The family tree of genetics
Human Inheritance Test Review
Presentation transcript:

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre Genetic testing: What is your view?

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre For each of the following situations, please give your response as: Strongly agree - Agree - Neutral - Disagree - Strongly disagree

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre Screening tests for Down syndrome should be offered to all pregnant women as the worry caused to women with healthy babies who have an abnormal screening test but a subsequent normal diagnostic test is greatly outweighed by the benefit to the women found to have affected pregnancies. 1 Strongly agree - Agree - Neutral - Disagree - Strongly disagree

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre When children are found by the neonatal screening programme to be carriers of sickle-cell disease, it is best not to inform the family because of the unnecessary worry this can engender during childhood. Strongly agree - Agree - Neutral - Disagree - Strongly disagree 2

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre Although Duchenne muscular dystrophy (DMD) is not yet treatable, neonatal screening (by measuring creatine kinase on the Guthrie card) of all male births should be performed as finding an affected male can lead to identification of mothers who are DMD carriers and so at risk of having further affected boys (birth incidence 1/3000 males). 3 Strongly agree - Agree - Neutral - Disagree - Strongly disagree

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre The antenatal screening programme identified a pregnancy where the fetus had multiple anomalies caused by a chromosomal imbalance. The otherwise healthy father was found to be a carrier of the chromosome rearrangement. The geneticist offered to test his relatives' chromosomes to see if they might be at risk of having affected children, but the man did not want them contacted. The geneticist should attempt to contact them without the man's consent. 4 Strongly agree - Agree - Neutral - Disagree - Strongly disagree

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre A GP has deeply held and sincere objections to termination of pregnancy. He decided not to refer a patient seeking advice about prenatal diagnosis for a genetic disorder. 5 Strongly agree - Agree - Neutral - Disagree - Strongly disagree

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre A woman's mother has advanced Huntington's disease (HD). Although the woman is at risk of developing HD, she does not wish to be tested. Her 20-year-old son wants to decide whether to start a family or not and so is tested. He is found to have inherited the HD gene, showing that he will develop the condition. His mother realises that she will develop the condition, and commits suicide. The geneticist looking after the son was right to test him. 6 Strongly agree - Agree - Neutral - Disagree - Strongly disagree

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre A man has an adult onset muscle disorder for which there is no cure. He and his partner did not wish to have prenatal testing but asked that the baby be tested at birth to determine whether the child will develop the condition. The geneticist should test the child. 7 Strongly agree - Agree - Neutral - Disagree - Strongly disagree

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre A man with haemophilia (the gene is on the X chromosome) has two daughters under 12. He wishes them to be tested to see if they are carriers. He should be advised that they must both be carriers and that no tests are necessary. 8 Strongly agree - Agree - Neutral - Disagree - Strongly disagree

Genetics and genomics for healthcare © 2012 NHS National Genetics Education and Development Centre The marriage arrangers of a religious group with a high incidence of a fatal autosomal recessive disease wish to arrange for carrier testing of all couples prior to marriage. They ask for the results to be given only to themselves. They will arrange that two carriers do not marry and by keeping the results confidential, carriers will not feel stigmatised. 9 Strongly agree - Agree - Neutral - Disagree - Strongly disagree