STOCKSCH 100 Lecture Notes - Lecture 29: Petal, Phenotype, Heredity

• School: UMASS-Amherst
• Department: Stockbridge Sch of Agriculture
• Course: STOCKSCH 100
• Professor: Sarah Berquist

Document Summary

U. (cid:862)nati(cid:448)es(cid:863: crops that originated in the region that is currently the continental us, sunflower, strawberries, cranberries. Know your genes: genetics branch of biology that deals with heredity and variation of organisms, heredity passing characteristics from parent to child, variation changes in what is passed along. How is information passed along: chromosomes carry the hereditary information on genes, genes carry specific instructions in the form of dna. Stores info that controls development and metabolic activities of cells. Stable so it can be replicated accurately during cell division. Has to be able to undergo mutations/adaptations for evolution to occur: this is the (cid:862)(cid:271)luepri(cid:374)t(cid:863) for life, chromosomes and their genes occur in pairs. New combinations of genes occur in sexual reproduction get one chromosome from each parent. Gene pairs determine certain traits (i. e. petal color) Ge(cid:374)es (cid:862)i(cid:374)stru(cid:272)t(cid:863) the (cid:272)ell to produ(cid:272)e parti(cid:272)ular protei(cid:374)s (enzymes) Enzymes affect biochemical reactions which are expressed as different traits/characteristics.