🔬ADN, Gen y Cromosoma DIFERENCIAS🔬 [Fácil y Rápido] | BIOLOGÍA |
What is DNA and Its Role in Genetics?
Understanding DNA Structure and Function
- DNA is the genetic material that contains all inherited information from our parents.
- Genes are segments of DNA that carry specific information, such as traits like height, skin color, hair type, and facial features.
- Humans have approximately 25,000 genes; these genes collectively form DNA, which is organized into chromosomes.
Chromosomes: The Organization of Genetic Material
- Chromosomes are tightly coiled structures of DNA found within the nucleus of cells.
- Humans possess 46 chromosomes arranged in 23 pairs; different species have varying numbers of chromosomes (e.g., cats have 38, dogs have 78).