Please answer the following question: Answer the following question given this paragraph: A sex chromosome is a chromosome that determines the sex of an organism. Humans have two sex chromosomes, X and Y . Females have two X chromosomes ( XX ), and males have one X and one Y chromosome ( XY ). An autosome is any chromosome other than a sex chromosome. If a trait is autosomal it will affect males and females equally. Q: What chromosome determines the sex of an organism? Choices: - ribosome - S chromosome - autosome - sex chromosome A:
A:
sex chromosome