Genes are made up of __________. __________ are made up of thousands of these genes. These genes are coded to make protein, which is how __________ are expressed in an organism.

Genes are made up of DNA. Chromosomes are made up of thousands of these genes. These genes are coded to make protein, which is how traits are expressed in an organism.

So the filled sentence will read: “Genes are made up of DNA. Chromosomes are made up of thousands of these genes. These genes are coded to make protein, which is how traits are expressed in an organism.”

Here’s a brief explanation:

– DNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for life.

– Chromosomes are structures within cells that contain many genes.

– Traits are the characteristics that are determined by the proteins produced based on the instructions from genes.

If you’d like more in-depth assistance on this topic, check the extended services page!