handout 1.11.11 - 1/11/11 1. Independent assortment:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 1/11/11 1. Independent assortment: Factors (alleles) for different traits (unlinked genes) are shuffled into gametes independently (randomly, by chance) of each other 2. Recombination: Generation of new genotypes in the offspring relative to their parents. NOTE: Many textbooks (including ours) limit the term to new gene combinations via crossover (XO); however, technically, segregation/fertilization and independent assortment are also major sources of recombination as covered in lecture 3. Pedigree: Family tree or genealogy, often used as basis to study the transmission genetics of a specific trait 4. Rare condition: Mutation for a specific feature arises only once within the pedigree 5. Proband: Affected individual who draws attention of geneticist/physician to family 6. Probability: Relative frequency of an event or outcome 7. Developmental noise: Phenotypic variation due to random developmental fluctuations in cell number, cell movement, and the like --------------------------------------------------------------------------------------------------------------------------------------- HUMAN PEDIGREES 1. Generations numbered with Roman numerals from oldest (top) to youngest (bottom) 2. Within a generation, individuals numbered with Arabic numerals from left to right 3. Within a single family, children presented from oldest (left) to youngest (right)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/08/2011 for the course PCB 3063 taught by Professor Marta during the Spring '08 term at University of Florida.

Page1 / 3

handout 1.11.11 - 1/11/11 1. Independent assortment:...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online