| A | B |
|---|
| Cell Cycle | Repeating sequence of growth and division through which many eukaryotic cells pass |
| Prokaryotes & Eukaryotes | Both must duplicate their DNA before cell division can occur |
| Centrosome & Spindle Fibers | Work together to move chromosomes during cell division |
| Meiosis | Occurs in all sexually reproducing organisms |
| During Meiosis | Two Successful divisions, result in four haploid cells |
| Nucleotides | Building blocks- or subunits- that make up DNA |
| Helicase | Enzyme that unwinds the DNA molecule & breaks the hydrogen bonds that link the nitrogenous bases |
| Somatic Cells | General body cells |
| Germ Cells | gamates |
| Mutations in Somatic Cells | Cannot be passed to offspring |
| Mutations in Germ Cells | Can be passed to offspring |
| A stem cell can continually divide & | Differentiate into specialized cell types |
| Taxonomy | The practice of naming and classifying organisms |
| The Linnaean classification system | Based on the form & structure of organisms |
| Fossils are used as | Evidence of the existence of organisms that lived in the past |
| Speciation | Process by which new species form |
| Neurotransmitter molecules | Removed from a synapse by being broken down by enzymes and/or being reabsorbed by the pre-synaptic neuron |
| Tolerance | Need for an increasing amount of a drug to achieve the desired feelings |
| Homeostasis | Maintained by a negative feedback system in the human body |
| Immunity | A long lasting resistance to a specific pathogen |
| Semen, Blood, & Breastmilk | Most common method of HIV Transmission |
