BIO 1 Chapter 13

In 1904 Dr. Morgan found that body color and wing size are linked

result of nondisjuntion in meiosis I: n+1, n+1, n+1, n+1

Euploidy is incorrect number of chromosomes

Genes are units of inheritance

Polyploid plants will die

Dr. Thomas Hunt Morgan studied fruit flies

Theodor Boveri observed grasshoppers in 1902

Theodor Boveri observed sea urchins in 1902

Nondisjunction: failure of one or more pairs of homologous chromosomes or sister chromatids to separate normally

Alfred Sturtevant was notably studious and he created a chromosome map in 1913

Boveri-Sutton Chromosomal Theory of Inheritance explained the mechanism of NON-Mendelian inheritance

result of nondisjuntion in meiosis II: n+1, n-1, n, n

Polyploidy is the lack of all chromosomes

aneuploidy is the incorrect number of chromosomes

BCR-ABL (Philadelphia Chromosome) is reciprocal translocation between chromosomes 9 and 22

In 1912 Dr. Morgan found that body color and wing size are linked

The Chromosomal Theory of Inheritance: chromosomes carry the unit of heredity (genes).

genes are found on chromosomes

Walter Sutton observed grasshoppers 1902

Translocation is the dissociation of a part of a chromosome and reattachment to a different chromosome

The q arm is the short arm on the chromosome

Barr Bodies are just round bellied people who drink a lot

result of nondisjuntion in meiosis I: n+1, n+1, n-1, n-1

Barr Bodies are the result of inactivation of the extra X chromosome, so does not happen in males

Boveri-Sutton Chromosomal Theory of Inheritance explained the mechanism of Mendelian inheritance

the philadelphia chromosome is the translocation of part of chromosome five to chromosome 19

Barbara McClintock and Harriet Creighton discovered "jumping genes" or crossover in 1931

Gregor Mendel was the father of modern genetics

Polyploidy is more chromosome SETS than normal

cri-du-chat is the result of deletion of the q arm of chromosome 5