Example: Apples Sold. Here is a pictograph of how many apples were sold at the local shop over 4 months: Note that each picture of an apple means 10 apples (and the half-apple picture means 5 apples).So the pictograph is showing: 1  In January 10 apples were sold.ere is a pictograph of how many apples were sold at the local shop over 4 months: Note that each picture of an apple means 10 apples (and the half-apple picture means 5 apples). So the pictograph is showing: 1  In January 10 apples were sold.
However, for males, there only needs to be one copy of an X-linked recessive gene in order for the trait or disorder to be expressed. For example, a woman can carry a recessive gene on one of the X chromosomes unknowingly, and pass it on to a son, who will express the trait:Therefore, half of the daughters have the gene and can pass it to the next generation.The other half do not have the gene and, therefore, cannot pass it on.owever, for males, there only needs to be one copy of an X-linked recessive gene in order for the trait or disorder to be expressed. For example, a woman can carry a recessive gene on one of the X chromosomes unknowingly, and pass it on to a son, who will express the trait:
This results in offspring with a phenotype that is neither dominant nor recessive. A typical example showing codominance is the ABO blood group system. For instance, a person having A allele and B allele will have a blood type AB because both the A and B alleles are codominant with each other.