Chromosomes in Humans:
Humans contain 46 chromosomes in total. These chromosomes are found in the nucleus of each cell in the body and are responsible for carrying genetic information.

Types of Chromosomes:
- Humans have 23 pairs of chromosomes, with one set inherited from each parent.
- Out of these 23 pairs, 22 pairs are autosomes, which determine traits such as hair color, eye color, and height.
- The remaining pair is the sex chromosomes, which determine the individual's sex. Females have two X chromosomes (XX), while males have one X and one Y chromosome (XY).

Genetic Information:
- Each chromosome is made up of DNA, which contains genes that code for specific traits and characteristics.
- The chromosomes are organized into structures called chromatids, which are visible during cell division.

Chromosome Abnormalities:
- Changes in the number or structure of chromosomes can lead to genetic disorders and abnormalities.
- For example, Down syndrome is caused by an extra copy of chromosome 21, resulting in a total of 47 chromosomes.

Conclusion:
In conclusion, humans have 46 chromosomes in total, with 23 pairs inherited from each parent. These chromosomes play a crucial role in determining our genetic makeup and traits.