09/28/2009
Bio Study
Hypothesis
oCan be falsified but not verifiable
Testing Hypotheses Naturally: Many science branches deal with
phenomena restricted to the past or too large, too complex, or too
long-lasting to allow experimental manipulation. These are often
tested naturalistically.
oNaturalistic scientists are restricted to those observations that
nature permits.
oThus, naturalistic comparisons are like experiments that
nature has performed.
oScientists search for situations where experimental conditions
naturally differ (e.g., differences from place to place in natural
temperature or lighting).
oSince other conditions (those not being tested) are not
controlled, natural scientists often collect large samples & use
statistical methods to eliminate or minimize the effects of
these other variables.
paradigm
oNew and old
o2nd slideshow
ethics
ostudy of moral codes
Mendel
oUnlike past studies
o1865
He focused on one trait at a time
Established ratios by counting offspring’s
Pure bred lines
Peas
Phenotype- appearance
Genotype- genetic makeup, not always visible
Alleles- variants of a gene
Law of segregation
