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Unformatted text preview: MCDB Christoffersen Genetic Vocabulary • Allele • One member of a pair of genes occupying a specific spot on a chromosome that controls the same trait . For example, a pair of alleles controlling the same trait, i.e. eye color: one allele codes for blue eyes, another allele for brown eyes. • Law of independent assortment • Mendelian law stating that for every pair of unit factors, each of them would assort independently into the newly formed gametes. • Law of segregation • Gregor Mendel's law stating that paired alleles separate during gamete formation. Consequently, each gamete would contain only one copy of every paired unit factors. • Linked • Genes that are inherited together with the other gene(s) as they are located on the same chromosome. • Crossing over • Crossing over is important because it results in new combinations of genes that are different from either parent, contributing to genetic diversity. • Dihybrid • a hybrid produced by parents that differ only at two gene locus that have two alleles each. Pertaining to an organism with two different alleles for a gene alleles each....
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This note was uploaded on 01/19/2012 for the course MCDB 1a taught by Professor Feinstein during the Fall '08 term at UCSB.
- Fall '08