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Multiple Choice
What type of traits are encoded on the X chromosome?
A
Mitochondrial traits
B
Autosomal traits
C
Sex-linked traits
D
Y-linked traits
Verified step by step guidance
1
Understand that chromosomes are structures within cells that contain DNA, which encodes genetic information. Humans have 23 pairs of chromosomes, including one pair of sex chromosomes: X and Y.
Recognize that traits encoded on the X chromosome are referred to as sex-linked traits. These traits are associated with genes located on the X chromosome.
Differentiate between sex-linked traits and other types of genetic traits. Autosomal traits are encoded on non-sex chromosomes (autosomes), while mitochondrial traits are encoded in the mitochondrial DNA, and Y-linked traits are encoded on the Y chromosome.
Consider examples of sex-linked traits, such as color blindness and hemophilia, which are more commonly expressed in males due to the presence of only one X chromosome.
Review the inheritance patterns of sex-linked traits, noting that males inherit their X chromosome from their mother and their Y chromosome from their father, while females inherit an X chromosome from each parent.