BIO 198 Chapter Notes - Chapter 2: Dihybrid Cross, Punnett Square, Mendelian Inheritance
Document Summary
Gregor mendel discovered the principles of heredity by using pea plants that had seven distinct characteristics that existed in two and only two styles. Mendel got results partially because he modeled his experiment to test the blending hypothesis. Blending hypothesis the theory that traits of progeny are a mixture of the parental characteristics. Scientific method observation, hypothesize, design a controlled experiment, collect data, interpret data (compare actual to expected results), draw conclusions. Me(cid:374)del"s (cid:272)ase, he s(cid:449)it(cid:272)hed (cid:449)hi(cid:272)h pla(cid:374)t t(cid:455)pe (cid:449)as the fe(cid:373)ale or the male: test-cross analysis doing a test where the dominant and the recessive phenotypes are combined (this means that one can find the dominant phe(cid:374)ot(cid:455)pe"s ge(cid:374)ot(cid:455)pe. Dominant phenotype the phenotype that is expressed more of the time. Recessive phenotype the phenotype that is expressed less frequently. Monohybrid cross a cross between a pure dominant (rr) plant and pure recessive (rr) plant which then creates heterozygous (rr) plants.
