| A | B |
|---|
| X and Y chromosomes | sex chromosomes - XX female, XY male |
| nonhomologous | when most genes on one chromosome have no matching alleles on the other |
| are X and Y homologous or non-homologous? | nonhomologous |
| autosomes | all chromosome pairs except for sex chromosomes (In other words, every other pair is homologous, X and Y aren't |
| sex often determined when? | at fertilization |
| sex-limited traits | autosomal traits that are expressed in only one sex, but are carried by both sexes (only activated by hormones of one sex) |
| sex-influenced traits | expressed in both traits, differently (ex - baldness, dominant in males but recessive in females) |
| when organisms w/out sex chromosomes, how is the sex determined? | by total chromosome # - males produced from unfertilized eggs and are haploid, females develop from fertilized eggs and are diploid |
