BIOLOGY 2C03 Chapter Notes - Chapter 2: In Vitro Fertilisation, Scientific Control, Heredity
13 Oct 2018
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2. 1 gregor mendel discovered the basic principles of genetic. Studied 14 strain of pea plants representing 7 individual each with 2 expression in seeds or plant dichotomous. Formulate a testable hypothesis to explain the observations: design a controlled experiment to test the hypothesis, collect data from the controlled experiment. Interpret the experimental results, comparing the observed results with those expected under the assumptions of the hypothesis: draw reasonable conclusions, reformulating or retesting the hypothesis if necessary. Five critical experimental innovation: controlled crosses between plants. Cross-pollination between selection organism able to perform artificial fertilization. Controlled genetic cross - genetic crosses controlled by an investigator who usually knows the genotypes and/or phenotypes of the organisms being crossed: use of pure-breeding strains to begin the experimental controlled crosses. Pure-breeding strains - a group of genetically identical homozygous organisms that, when self- fertilized or intercrossed, only produce offspring that have a phenotype identical to the parents.
