Class Notes (838,030)
Canada (510,640)
BIOB11H3 (215)
Dan Riggs (156)
Lecture

Chromosomes, Heredity

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Department
Biological Sciences
Course
BIOB11H3
Professor
Dan Riggs
Semester
Winter

Description
Genome- collective body of genetic information that is present in a species Genes- unit of inheritance or distinct factors Alleles- two copies of a gene that controls the development of each trait Diploid- two copies of each gene Nulls- homozygous recessive, normally associated with a mutant Bivalent- when pairs of homologous chromosomes interacted with each other Crossing Over - when paternal chromosomes broke and exchanged their pieces, thus resulting in various genetic traits Discoveries on the nature of the gene: 1865. Discovery of units of inheritance from pea plants 1880. Discovery of the chromosomes 1903. Discovery of the homologous chromosomes 1909. Crossing over was discovered 1911. Genes could be mapped in order along the length of chromosomes 1944. DNA as genetic material 1953. DNA structu
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