Chapter 2 Flashcards
Chromosome
Threadlike structures made up of deoxyribonucleic acid, or DNA 23 pairs
Evolutionary Psychology
Emphasizes the importance of adaptation, reproduction, and “survival of the fittest” in shaping behavior
Genes
Units of hereditary information composed of DNA. Genes direct cells to reproduce themselves and manufacture the proteins that maintain life
Genome
The complete set of developmental instructions for creating proteins that initiate the making of a human organism
DNA
Complex molecule with a double helix shape; contains genetic information
Meiosis vs Mitosis
Mitosis: cellular reproduction in which the cell’s nucleus duplicates itself with two new cells being formed
Meiosis: a specialized form of cell division that occurs to form eggs and sperm (gametes )
Fertilization vs Zygote
Fertilization: a stage in reproduction whereby an egg and a sperm fuse to create a single cell, called a zygote
Zygote: a single cell formed through fertilization
Gene mutations
A mistake by cellular machinery, or damage from an environmental agent which is a permanently altered segment of DNA
Genotype vs Phenotype
Genotype: a person’s genetic heritage; the actual genetic material
Phenotype: the way an individuals genotype is expressed in observed and measurable characteristics.
Genetic imprinting vs Polygenetic inheritance
Genetic imprinting: occurs when genes have different effects depending on whether they are inherited from the mother or father
Polygenetic inheritance: occurs when most characteristics are determined by the interaction of many different genes
Prenatal diagnostic test
ultrasound sonography, chorionic villi sampling, amniocentesis,
Nuchal Translucency screening,
Maternal blood or triple screening,
non-invasive prenatal diagnosis
Infertility and reproductive technology
Invitro fertilization
Gamete intrafallopian transfer
Zygote intrafallopian transfer
Twin study vs adoption study
Twin study: A study in which the behavioral similarity of identical twins is compared with the behavioral similarity of fraternal twins.
Adoption study: a study in which investigators seek to discover whether, in behavior and psychological characteristics, adopted children are more like their adoptive parents or more like their biological parents
Genetic-environment correlation: passive, evocative, and active correlation
Passive- parents like sports, they will sign up the children to do sports
Evocative-child that is always talkative unintentionally changing environment
Active-actively seeking the environment you wanted
Shared vs Nonshared environmental experiences
Shared: Siblings common experiences, such as their parents personalities and intellectual orientation, the family’s socioeconomic status, and the neighborhood in which they live
Nonshare: the child’s own unique experiences, both within the family and outside the family, that are not shared by another sibling