A gene is a short piece of DNA. Genes tells the body how to build a specific
A person’s genetic makeup is called a genotype.
Genes are made of DNA. Strands of DNA strands make up part of your
Genetic traits, such as eye color, are dominant or recessive:
Dominant traits are controlled by one gene in the pair of chromosomes.
Recessive traits need both genes in the gene pair to work together.
Many personal characteristics, such as height, are determined by more than one gene. However, some diseases, such as