Class Notes (835,873)
Canada (509,459)
Biology (2,253)
BIOL 239 (290)
Lecture

Sex Linked Traits and Releated Oddities.docx

2 Pages
109 Views
Unlock Document

Department
Biology
Course
BIOL 239
Professor
Heidi Engelhardt
Semester
Summer

Description
Sex-Linked Traits and Related Oddities  Genes can also determine differences between sexes o Sex-limited traits  affect a structure or process that is found in one sex but not the other  e.g., bright plumage in male birds, milk production, horns/antlers o Sex-influenced traits  show up in both sexes but their expression may differ between the two sexes  e.g., patterned baldness o Sex-linked traits  due to genes ON the X or Y chromosome  e.g., hemophilia and color blindness o 007 = b_ vs b+b+(hair)  premature loss of hair from top of head, but not sides  begins in late 20s in heterozygous men, but heterozygous women show no effect  in homozygous men and women, baldness results in both, but much earlierin men  influenced by sex hormones  dominant in men, recessive in women  Environment o Factors such as temperature, light, and altitude can affect the phenotypic expression of a genotype o The environment can affect the phenotypic exp
More Less

Related notes for BIOL 239

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit