Which method did morgan and colleagues use to show that hereditary information was carried on chromosomes?
statistical predictions of the outcomes of crosses using true-breeding parents
correlations between microscopic observations of chromosomal movement and the characteristics of offspring
transformation of nonpathogenic bacteria to pathogenic bacteria
mutations resulting in distinct defects in metabolic enzymatic pathways

correlations between microscopic observations of chromosomal movement and the characteristics of offspring

Explanation:

Morgan and his colleagues carried out genetic experiments on fruit fly, Drosophila melanogaster. They observed the movement of chromosomes of the fruit fly during cell division with the help of the microscope and analyzed the resultant phenotypes.

These correlations between chromosomal movement during cell division and specific phenotypes led to the chromosomal theory of inheritance which states that chromosomes are the carrier of genetic information from one generation to next.

explanation:

codominace both parental allels can be observed in the offspring

dominance neither parental allels can be observed in the offspring

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