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:
Each letter in a gene pair stands for one form of the trait. The forms are called alleles. In this example, the alleles are blue eye color and brown eye color. The two types of alleles are dominant and recessive. A dominant allele is written as a capital letter, and a recessive allele is written as a lowercase letter.If a gene pair contains a dominant allele, then the offspring will show this dominant trait.he forms are called alleles. In this example, the alleles are blue eye color and brown eye color. The two types of alleles are dominant and recessive. A dominant allele is written as a capital letter, and a recessive allele is written as a lowercase letter.