Final answer:
Male pattern baldness is an example of a sex-influenced trait, being more prevalent in males due to the influence of androgens on gene expression. Hair color such as blonde or brown is not sex-influenced but is autosomal. Traits like red-green colorblindness are sex-linked, affecting males more due to their X chromosome constitution.
Step-by-step explanation:
Male pattern baldness is one of the sex-influenced traits. This means that this trait is influenced by the sex of the individual. Male pattern baldness tends to be more prevalent in males due to the presence of androgens, which are hormones that influence the expression of certain genes, leading to hair loss.
Hair characteristics such as color and texture, including the presence of melanin, which determines whether hair is blond or brown, are not sex-influenced traits. Instead, these characteristics are typically autosomal, meaning they are not influenced by an individual's sex chromosomes. In contrast, sex-linked traits like red-green colorblindness are located on the sex chromosomes and exhibit different patterns of inheritance between males and females. An example being that males are more likely to be affected by red-green colorblindness because it is a recessive trait located on the X chromosome, and males only have one X chromosome.