Chapter 11
Learning Outcomes
- Family History & Disease Risk: Understanding how family history can indicate predispositions to certain diseases.
- DNA Testing Uses: Explores appropriate applications of DNA testing, potential for genetic discrimination.
- Genetic Engineering & Controversy: Defines genetic engineering, discusses cloning and stem cell research as contentious topics.
- Infertility Remedies: Identifies three potential solutions for couples facing infertility issues.
- Children's Rights in Healthcare: Lists relevant laws impacting health care related to children's rights.
Genetics and Heredity
- Heredity: The process by which organisms transmit genetic traits to their offspring.
- Genetics: The study of variations among organisms due to genetic inheritance.
Definitions
- DNA: A sequence of nucleotides forming the genetic blueprint of an organism.
- Gene: A segment of DNA located on a chromosome that encodes a specific trait.
- Chromosomes: Structures within the nucleus of cells that hold genetic material.
- Genome: The complete set of genetic information in an organism, encompassing all genes.
The Human Genome Project
- Overview: A comprehensive initiative initiated in 1990 and concluded in 2000 to map all human genes.
Uses of DNA Testing
- Newborn Screening: Early detection of genetic conditions.
- Diagnostic Testing: Identifying conditions that may have already developed.
- Carrier Testing: Determining if an individual carries a gene for a recessive genetic disorder.
- Prenatal Testing: Assessing fetal health and conditions during pregnancy.
- Preimplantation Testing: Screening embryos for genetic conditions before implantation.
- Predictive Testing: Assessing risk of developing genetic disorders later in life.
- Forensic Testing: Utilizing DNA for criminal investigations.
Genetic Diseases
- Definition: Genetic diseases result from permanent mutations in the DNA, affecting functioning genes or altering chromosome structure/number.
- Genetic Counselor Role: Professionals who help interpret genetic testing results and navigate related issues.
Genetic Discrimination
- Definition: Unequal treatment based on genetic differences, comprising actual or presumed distinctions.
- Protective Laws:
- HIPAA: Health Insurance Portability and Accountability Act.
- ADA: Americans with Disabilities Act.
- GINA: Genetic Information Nondiscrimination Act.
- ACA: Affordable Care Act.
Genetic Engineering
- Definition: The process of manipulating genetic material in organisms to eliminate harmful traits and promote favorable ones.
- Controversies: Concerns regarding unpredictable outcomes of genetic modifications.
Cloning
- Definition: Creating an exact genetic duplicate of a cell, tissue, or organism.
- Types of Cloning:
- Gene Cloning: Isolating and making copies of specific genes.
- Therapeutic Cloning: Producing tissues or organs from cloned cells.
- Reproductive Cloning: Creating an organism fully.
- Xenotransplantation: Transplanting animal organs into humans.
- Objections: High failure rates, health issues in clones, and unknown effects on mental development.
Gene Therapy
- Definition: Introducing a healthy gene into cells deficient in functioning genes to treat diseases.
- Applications:
- Replace deficiencies in genes.
- Insert normal genes.
- Disable harmful genes.
Infertility
- Definition: Inability to conceive after 12 months of trying due to disruptions in reproductive systems.
Options for Infertile Couples
- In Vitro Fertilization: Fertilization occurring outside the body.
- Artificial Insemination: Introducing sperm directly into the reproductive tract.
- Surrogacy: Having another woman carry a child to term for the couple.
Adoption Types
- Agency Adoptions: Through licensed agencies.
- Independent Adoptions: Facilitated privately between parties.
- Identified Adoptions: Parties know each other prior to the process.
- International Adoptions: Adopting from other countries.
- Relative Adoptions: Adoption involving a family member.
Rights of Children
- Parens Patriae: Doctrine giving the state the authority to intervene in the child's best interest.
- Best Interest of the Child: Principle prioritizing the child's welfare in legal decisions.
- Newborn Rights: Newborns hold the same rights as other citizens.
Abandoned Infants
- Safe Haven Laws: Allow mothers to leave infants in approved facilities without facing legal penalties.
Minors
- Mature Minors: Teens deemed capable of giving informed consent.
- Emancipated Minors: Minors who live independently of parental control.