Each body cells contain 23 pairs of chromosomes.

DNA analysis used to determine paternity/maternity of a child is always accurate.

Stretched out, the DNA from all the cells in our body would wrap around the world approximately 350 times.

An organism's genotype is the set of genes that it carries.

The observable physical properties of an organism; include the organism's appearance, development, and behavior is referred to as phenotype.

mRNA has the same basic building blocks or "bases" to DNA.

Every person on the planet shares 99% of his or her DNA with every other person.

We share 96% of our DNA with primates such as chimpanzees, gorillas, and orangutans.

A single chromosome contains many genes joined together, which could be compared to beads attached on a string.