Chromosomes play a big role in human genetics. Here are some challenges we face when studying them:

1. Complexity: The human genome, which is our complete set of genes, has about 20,000 to 25,000 genes. These genes are spread out over 23 pairs of chromosomes. This makes it tricky to study different genetic traits.

2. Mutations: Sometimes, changes happen in the chromosomes. These changes can cause genetic disorders, which makes it harder to understand how traits are passed down from parents to kids.

3. Inheritance Patterns: It can be hard to predict traits because there are many different ways these traits can be inherited.

Solutions:

• New technology in biotechnology, like CRISPR, can help us look at and fix genetic problems. This could lead to a better understanding of genetics and better treatments for genetic issues.