FMLY 1010 Lecture 11: Lecture 11

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Family Social Sciences
FMLY 1010
Christine A.Schippers

OD88729 Over passage of time (chronosystem) Attempted to classify individual and contextual variables that affect development and specify how they interact Macrosystem outermost sphere (sociocultural context) ideologies, values, beliefs Exosystem (socioeconomic context) institutions of culture that affect childrens development indirectly (workplace of a childs parent, health careeducational system) Microsystem (immediate context) variables to which people are exposed directly (families, schools, religious institutions) The Person (individual context) genetic makeup and developmental stage Ecobiodevelopmental Theory Foundations of healthy development, and the origins of many impairments, can be biologically embedded through geneenvironment interactions beginning at conception and continuing throughout the early year of life Most costeffective way to bring about improvements in health is to focus effort on the prenatal and early childhood periods of development Efforts might include formation and implementation of policiesstrategies that reduce disruptive effects of prolonged and intense diversity in early childhood (toxic stress) CHAPTER 3 Conception Women produce one ovum each month from one of her 2 ovaries, midway between menstrual periods If it does not get fertilized, the ovum travels through the fallopian tube toward the uterus and gradually disintegrates with menstrual fluid Gametes = cells that unite at conception (ova in females, sperm in males) Contain 23 single chromosomes (as opposed to 23 pairs in all other cells) Zygote = a single cell created when sperm and ovum unite Contains 23 pairs of chromosomes 22 pairs of chromosomes are autosomes contain genetic material 23 pair is a sex chromosome determines the sex Xchromosome one of the largest chromosomes in the body, carries a large number of genes o Ychromosome small, contains only a few genes o Zygote with 2 X chromosomes is female, 1X 1Y is male
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