PSY 2301 Study Guide - Midterm Guide: Prenatal Development, Blastocyst, Egg Cell
13 Feb 2016
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Chromosomes: strings of genetic material in the nuclei of cells. Gametes: cells that unite at conception (ova in females; sperm in males) Zygote: single cell created when sperm and ovum unite. Deoxyribonucleic acid (dna): chemical material that makes up chromosomes and genes. Genes: pieces of genetic material that control or influence traits. Gonads: sex glands (ovaries in females; testes in male) Genotype: the unique genetic blueprint of each individual. Phenotype: an individual"s particular set of observed characteristics. Dominant-recessive pattern: pattern of inheritance in which a single dominant gene influences a person"s phenotype but two recessive genes are necessary to produce an associated trait. Polygenic inheritance: pattern of inheritance in which many genes influence a trait. Multifactorial inheritance: inheritance affected by both genes and the environment. Cephalocaudal pattern: growth that proceeds from the head downward. Proximodistal pattern: growth that proceeds from the middle of the body outward. Implication: attachment of the blastocyst to the uterine wall.
