University:
Loyola University Maryland
Course:
PY 222 | Cognitive Psychology
Academic year:

2023
Views:

340

Pages:

2
Author:

Natasya J.

Heredity : Charactensties obtained directly from the genes Environment: A person's surroundings, which in fluence the person's characreristics and deve lopment The Roll of Heredery Genes are the basic units of heredity. They contain directions for many characteristes, such as eye color and shape, hair color and texture, adult height, general body build, and so on. Except for the effects that the prenatal enuironment can have (the pregnant woman's nutrition, injury to the ferus, and so on), everything babies are born with is determined by their genes. Genes are carried on larger units, the chromo- somes. Every kind of body cell contams as pairs of Chromosomes, for a total ot 46 - every kind but one, that is. The reproductive cells, the egg and the sperm, each contan only 23 chromosomes, one half Of each pair. When they unite at conception, the fertilize egg. or zygore (ZYE-goat), then has the necessary number, 46, for proper development. While the environment is also critical to proper development, psychology in recent years has focused more and more on the influence that heredity hason many of our abilities and behavore. The Influence of heredity on intelligence is considerable. And genes can clearly influence a child's acturty level, how easily soothed an infant is, his or her emotional responsiueness, and how a child reacts to new or novel things in the environment. There are even indica- Hons that tolerance for alcondl may have a genetic background. Nature / nucture controversy contrasting views of how we gain certain charactert- Stics.