PSYC 2410 Study Guide - Midterm Guide: Minnesota Twin Family Study, Noncoding Dna, Thymine

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2410
• Professor: Boyer Winters

Document Summary

He decided to study the dichotomous traits (starting with crossing the true-bred offspring lines) Dichotomous traits- traits that occur in one form or the other, but never in combination. Seed colour (every pea plant has either brown or white seeds) True breeding lines- breeding lines in which interbred members always produce offspring of the same trait generation after generation. In his early experiment, he studied the inheritance of seed colour, brown or white. Began by cross breeding the offspring of a line of pea plants that were true-bred white. The offspring of this all had brown seeds. Then, he bred the first generation offspring with one another and found that of the second generation had brown seeds and had white. Dominant trait- appeared in all of the first generation offspring. Recessive trait- appeared in about of the second generation offspring. In humans, brown eyes are dominant and blue eyes are recessive.