BIOLOGY 1113 Lecture Notes - Lecture 29: Chromosome, Quantitative Trait Locus

• School: Ohio State University
• Department: Biology
• Course: BIOLOGY 1113
• Professor: Eric Danhart

Document Summary

All image credits go to freeman biology 6th edition. Linkage(exception to mendel)- allele"s, of particular genes, tendency to be inherited together(physical association on same chromosome)(dependent assortment of alleles). Two or more genes located on same chromosome(sex linkage refers to single gene located on sex chromosome). )- new combination of alleles, different from mother. Crossing over separates alleles that are linked, and forms gametes w/ new. Alleles on same chromosome often stay together, however, this isn"t combination of alleles. always true. Farther genes are on same chromosome, more likely crossover will take place b/w genes. Linked genes are inherited together unless crossing over occurs. Genetic map/linkage map- diagram showing relative positions/distance b/w genes along chromosome. Multiple allelism- more than two common alleles of same gene(abo(ia,ib,i). Codominance(ab)- inheritance pattern, heterozygotes exhibit both of traits seen in. Incomplete dominance- inheritance pattern, phenotype of heterozygote is in b/w each type of homozygous individual. phenotypes of homozygotes. sickle-anemia).