PSYCH 350 Lecture Notes - Lecture 6: Down Syndrome, Edwards Syndrome, Gene Expression
1 Apr 2016
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Document Summary
Behavioral genetic research designs: family studies. Correlate trait scores for pairs of individuals with varying degrees of relatedness (ex. Nonshared environment effects - effects of the environment unique to the individual: birth order, experiencing parents" behavior differently, being affected differently by shared experiences (divorce, the motivation of siblings to differentiate themselves from one another, isolated trauma. Key elements: genotype genetic material you inherit, phenotype expression of genotype (appearance, behavior, etc. , environment every aspect of your surroundings, parents genotype gets passed on to children. Relation: a parent and child"s genotype: chromosomes the packaging for our genetic material (dna, karyotype a picture of your chromosomes. We all have 46 chromosomes in each cell of our bodies (23 pairs) 23 chromosomes haploid (purposely only have half the number of chromosomes) Mitosis normal cell reproduction (reproduce with a pair) Meiosis sex cell reproduction (reproduce without a pair) Trisomy 21 aka down syndrome error in cell division gives you an extra chromosome (1 in 1,000)
