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Human Growth Quiz 2

Gene A segment of DNA along the length of a chromosome.
Zygote The resulting cell when the sperm and the ovum unite.
XX The 23rd pair of chromosomes (sex chromosomes) in a female.
XY The 23rd pair of chromosomes (sex chromosomes) in a male.
Fraternal/Dizygotic The most common type of multiple offspring, resulting from the release and fertilization of two ova.
Identical/Monozygotic Twins that happen when a zygote that has started to duplicate separates into two clusters of cells and they develop into two individuals. They have the same genetic makeup.
Down Dyndrome The most common chromosomal disorder, 1 out of every 770 live births. Results from the failure of the 21st pair of chromosomes to separate during meiosis. consequences include mental retardation, memory and speech problems, and limited vocabulary.
Collectivist society People define themselves as part of a group and stress group goals over individual goals.
Individualist societies People think of themselves as separate entities, and are largely concerned with their own personal needs.
Dominant This allele effects a child's inherited traits.
Recessive This allele has no effect on the inherited traits of a child.
Behavioral genetics A field devoted to uncovering the contributions of nature and nurture to this diversity in human traits and abilities.
Heritability estimates Measures the extent to which individual differences in complex traits in a specific population are due to genetic factors.
Niche-picking The tendency to actively choose environments that complement our heredity.
Created by: Hallierob1012