0. Chapter 3 Genes, Environment, and Development. 0. Species Heredity Genetic endowment Common to the species Governs maturation and aging Human examples Two eyes, sexual maturity at 12-14 yrs. Natural Selection: Genes allowing adaptation are passed on. 0. Evolution.
Chapter 3Genes, Environment, and Development
A genotype refers to person’s genetic heritage.
Offspring with brown eyes
flattening of the back of the head
slanting of the eyelids
short stubby limbs
1/3000 females - short stature, sterile, webbed neck, stubby fingers, arms that turn out slightly at the elbow, and a low hairline in the back of the head
eye & vision impairments Hyper-extensible joints (double jointed)
elongated face Large testicles (evident after puberty)
Flat feet Low muscle tone
High arched palate Autism and autistic-like behavior
Prominent ears hand biting and hand-flapping
Mental Retardation Hyperactivity and short attention span