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Questions and Answers
What are hemoglobinopathies primarily associated with?
What is the primary aim of genetic counselling?
Which of the following best describes presymptomatic genetic diagnosis?
What role does genetic assessment play?
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Thalassemia is classified under which type of disorder?
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Which of the following indicates an increased risk of developing a condition later in life?
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Which service does cytogenetics provide?
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What does the estimation of risk in genetic diagnosis focus on?
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What is the primary focus of medical genetics?
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Which of the following statements describes autosomal dominant inheritance?
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Which milestone in medical genetics was established in 1941 in the USA?
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How does Hardy-Weinberg principle contribute to genetics?
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Which type of genetic disorder typically does NOT have skipped generations?
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What is a significant characteristic of autosomal recessive inheritance?
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Which disorder is commonly associated with autosomal dominant inheritance?
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What is NOT a characteristic feature of autosomal dominant inheritance?
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What is the primary role of the Clinical Genetics Unit?
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Which of the following describes a proband?
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What type of diagnostic testing is offered by the Biochemical Genetics Unit?
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Why are there no genetic counsellors in the Philippines?
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Which of the following is NOT mentioned as a key function of the Molecular Genetics Unit?
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Which of the following health conditions is associated with the Biochemical Genetics Unit?
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What is the primary method used in the Molecular Genetics Unit for studying genes?
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What type of patient typically visits the out-patient service at a clinical genetics unit?
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Which disorder is caused by having only one altered copy of the gene?
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Which of the following is not a disorder mentioned in the context?
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Which prenatal diagnostic option is specifically used to sample the placenta?
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What does fluorescence in-situ hybridization (FISH) analysis diagnose?
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What genetic condition is characterized by a deficiency of the G6PD enzyme?
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Which of the following is not a confirmation method for genetic disorders?
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What is one of the main providers of genetic services in the Philippines?
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Which of the following disorders is characterized by a mutation leading to abnormally high levels of factors in the blood?
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What is the concept of consanguinity associated with in the context of genetic disorders?
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Which of the following best describes the concept of informed consent in healthcare?
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What psychosocial issue may parents face regarding their role in genetic transmission?
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Which type of genetic disorder primarily increases with consanguinity?
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What is a common consequence related to reproductive decision-making influenced by genetic risks?
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Which of the following is a legal and ethical issue relevant to genetic testing?
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What is the Westermarck Effect in relation to inbreeding avoidance?
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What kind of support might be necessary for parents after a bereavement related to genetic conditions?
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Study Notes
Genetic Disorders
- Angelman Syndrome, Edouard Syndrome, Down Syndrome, and Turner Syndrome are common genetic disorders with various inheritance patterns.
- Duchenne Muscular Dystrophy and Fragile X Syndrome are also prevalent disorders affecting individuals, particularly males.
- Hemophilia A and B are genetic bleeding disorders requiring only one altered gene copy for expression.
Genetic Clinical Services
- Services include prenatal diagnosis (e.g., ultrasound, amniocentesis) and postnatal routine karyotyping.
- Genetic clinics provide confirmation of disorders, counseling, investigation, and prenatal diagnosis information.
- Major providers of genetic services in the Philippines include the Institute of Human Genetics and UP Manila.
Genetic Units and Their Functions
- Clinical Genetics Unit offers clinical services and metabolic disorder management.
- Molecular Genetics Unit focuses on research of genetic conditions via techniques like DNA sequencing.
- Biochemical Genetics Unit specializes in diagnosing metabolic disorders such as Phenylketonuria.
- Hemoglobinopathy Unit addresses disorders of the hemoglobin chain, resulting in conditions like thalassemia.
Genetic Counseling
- Aims to support individuals/families in understanding genetic disorders and their implications.
- Helps in adjusting to the psychosocial impact of genetic conditions.
- Provides guidance on diagnosis, risk of transmission, prognosis, and follow-up care.
Genetic Diagnosis
- Establishes precise diagnosis of genetic disorders.
- Involves several types of diagnostic classifications:
- Diagnostic confirms a known condition.
- Presymptomatic predicts future symptoms.
- Susceptibility assesses risks for future genetic diseases.
Inheritance Patterns
- Clinical genetics involved in examining hereditary traits through pedigree charts.
- Autosomal dominant inheritance results in affected children typically having affected parents, with equal likelihood of transmission among genders.
- Autosomal recessive inheritance may have carriers, but not all carriers show symptoms.
Consanguinity
- Refers to individuals descended from the same ancestor; linked with higher risks of inborn metabolic errors.
- Increases incidence of multifactorial disorders, such as diabetes and certain cancers.
- Inbreeding considerations include guilt, reproductive decision-making, and the effects on extended family.
Legal and Ethical Issues in Genetics
- Informed consent is crucial for procedures in genetic healthcare, ensuring that patients understand risks and benefits.
- Ethical considerations include balancing personal choices with familial impact and societal norms.
Psychosocial Considerations
- Guilt from perceived genetic transmission may affect parents.
- Decisions about reproduction can be influenced by genetic conditions' implications for offspring.
- Support needed post bereavement or when navigating a loved one's genetic health challenges.
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Description
This quiz covers common genetic disorders such as Angelman Syndrome, Down Syndrome, and Duchenne Muscular Dystrophy, including their inheritance patterns. It also explores genetic clinical services like prenatal diagnosis and the role of specialized genetic units in managing these disorders. Test your knowledge on the intricacies of genetics!
