PSY 3061 Lecture Notes - Lecture 2: Zygosity, Attention Deficit Hyperactivity Disorder, Meiosis
Document Summary
Used tiny beaks to pinch insects out of crevices. An organism"s fitness determined their survival and reproduction. Potential to attract mates, reproduce, and pass on dominant traits. Traits that have reproductive values are passed on to future generations. Best way to understand phenomenons is to understand its useful functions for the organism. Common among species = have evolutionary significance. Take from others and provide yourself with more resources to survive. Study of different species to understand, evolution, genetics, and adaptation. Helpful functions increase fitness of organism - passed on to future generations. Work led to an understanding of units of inheritance (genes). Genes that are dominant are always expressed, except that sometimes recessive traits prevail - only expressed if homozygous for recessive. Depend on two alleles for particular gene. If gene for a dominant trait is inherited = always expressed. Possessing two of the same genetic factors for a trait (dominant or recessive).
