Psychology 2040A/B Chapter Notes - Chapter 2: David Buss, Nucleic Acid Double Helix, Cytosine
6 Jan 2020
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Natural selection: evolutionary process, individuals best adapted are the ones that survive and reproduce. Adaptive behaviour: behaviour that promotes an organism"s survival in the natural habitant. Evolutionary psychology: emphasizes the importance of adaptation, reproduction, and. Fit : ability to bear offsprings that survive long enough to bear offspring of their own. Uses concepts of evolutionary psychology to understand human development. Direct cells to reproduce themselves and assemble proteins. The activity of genes are affected by the environment. Cell"s nucleus and chromosomes duplicates and cell divides. Cell of testes or ovaries duplicates chromosomes -> divides twice -> forms 4 cells (only half of genetic material of the parent cell) Fertilization: egg + sperm -> zygote (single cell) -> 23 paired chromosomes. Each parent contributes half of the offsprings genetic material. Autosomes -> 22 pairs of chromosomes that are not sex chromosomes. Combining genes of two parents -> increases variability in population -> provides more characteristic for natural selection.
