Chromosomes containing thousands of genes are passed from parents to offspring and determine an individual's unique traits. Together, DNA, genes, and chromosomes make up each organism's genome.

As it turns out, the connections between genes, chromosomes, DNA, and heredity were not recognized ... which he called traits, were passed down to successive generations. Mendel speculated that ...

Each cell with a nucleus contains chromosomes, which are made from DNA Human body cells each contain 23 pairs of chromosomes, half of which are from each parent. So, human gametes (eggs and sperm ...

DNA molecules are large and complex. They carry the genetic code that determines the characteristics of a living organism. The backbone of the DNA double helix consists of alternating phosphate ...

Encoded within this DNA are the directions for traits as diverse as the color ... compacted DNA is then arranged into structures called chromosomes. Chromosomes take different shapes in different ...

The DNA within the chromosomes encodes genes, which are the basic units of heredity. Genes contain the information needed to produce proteins, the building blocks of life. During sexual reproduction, ...

When scientists today work to decode the human genome, they use high-tech methods to view the microscopic chromosomes ... down traits. And Darwin knew that the lack of an explanation for heredity ...