Cold Spring Harbor Laboratory
Dna From the Beginning: Sex Linked Hemophilia in the Royal Romanov Family
An animated pedigree clearly explains the way hemophilia was inherited in the Romanov family. Interpreting pedigrees and sex-linked crosses should be much easier to understand after going through this tutorial.
Genome British Columbia
Genome British Columbia: Y Files
This resource presents a detailed discussion and explanation of the Y-chromosome and how it determines the male sex.
Other
U.s. Livestock Species Genome Projects
An excellent site which explains all that is involved in and with animal genome projects in the United States.
PBS
Nova: How Is Sex Determined?
The sex of an egg cell is set as soon as it is fertilized, but what happens to that cell and the cells it divides into to make a baby boy or a baby girl? In this interactive, see how gonads-which look identical in early-stage...
Khan Academy
Khan Academy: X Linked Inheritance
Find out about the chromosomal basis of sex determination, X and Y chromosomes, and X-linkage.
National Geographic
National Geographic: Blog: Tiny Critter Has Seven Sexes
Meet the freshwater Tetrahymena, a single-celled creature that has seven possible sexes. This article presents information from recent research that helps explain how the creature reproduces and how its sex is determined.
Cold Spring Harbor Laboratory
Dna From the Beginning: Chromosomes Carry Genes
Thomas Hunt Morgan will explain the research he did to determine that some traits are linked to the sex of an individual.
University of Arizona
University of Arizona: Sex Linked Inheritance
This site from the University of Arizona provides great information on a sex-linked inheritance problem set. This is a very good site to practice what you know about sex-linked problems. Each link is a problem.
University of Arizona
University of Arizona: Sex Linked Inheritance Set 2
This site, provided by The University of Arizona, gives a good set of genetics problems that involve sex-linked genes. Great to review what you know! Links are provided to access the various subjects covered in this problem set.
Science Buddies
Science Buddies: X Inactivation Marks the Spot for Cat Coat Color
A tortoiseshell cat has two different fur colors, black or brown and red or orange. The gene that gives rise to the red or orange fur color is on the X chromosome. Female cats have two X chromosomes, while males only have one, which...
Estrella Mountain Community College
Estrella Mountain Community College: Gene Interactions
This resource provides extensive information about genetic interactions.
Palomar Community College District
Palomar College: Sex Linked Genes
This resource will explore sex-linked genes which are a form of genetic linkage that depends on the X and Y sex chromosomes.
Other
North Dakota State Univ.: Detecting and Measuring Linkage
A good site to establish what is meant by gene linkage and sex-linkage.
National Health Museum
Access Excellence: Sex Linked Inheritance: Drosophila
Here are graphics illustrating an experiment with drosophila fruitflies. Sex-linked inheritance is demonstrated here using eye color alleles on X chromosomes. Site by Access Excellence.
CK-12 Foundation
Ck 12: Biology: Genetic Linkage
[Free Registration/Login may be required to access all resource tools.] Discusses linked genes and why some characteristics are inherited together.
CK-12 Foundation
Ck 12: Biology: Mendelian Inheritance in Humans
[Free Registration/Login may be required to access all resource tools.] Covers Mendelian inheritance of autosomal and sex-linked traits in humans.
CK-12 Foundation
Ck 12: Life Science: Sex Linked Inheritance
[Free Registration/Login may be required to access all resource tools.] What determines if a baby is a male or female? Recall that you have 23 pairs of chromosomes-and one of those pairs is the sex chromosomes. Everyone has two sex...
CK-12 Foundation
Ck 12: Biology: Genetic Linkage
[Free Registration/Login may be required to access all resource tools.] Discusses linked genes and why some characteristics are inherited together.
CK-12 Foundation
Ck 12: Life Science: 3.13 Sex Linked Inheritance
Learn about the traits that are linked to genes on the sex chromosomes.
Sophia Learning
Sophia: X Linked Traits
This lesson will give examples of disorders that are linked to genes on the X chromosome.