In humans, each cell nucleus contains 23 pairs of chromosomes a total of 46 chromosomes. The first 22 pairs are called autosomes which look exactly the same in both males and females. The 23rd pair of chromosomes is called an allosome. These sex chromosomes differ between males and females. Females have two copies of the X chromosome, while males have one X chromosome and one Y chromosome.
Range refers to the y-axis. Domain refers to the x-axis. Range refers to the y-axis. Domain refers to the x-axis.
The horizontal number line is called the x-axis. The equation of x-axis is y = 0. The y-coordinate or ordinate of every point on x-axis is equal to 0. The figure shows the coordinate plane formed by the intersection of the x- and y- axes. Their point of intersection is called the origin.