Sperm cells are an example of __ which pass on genes What word completes the sentence?

## Step 1: This question asks which type of cells sperm cells are an example of, given they pass on genes. In biology, we know that this function - passing the genes - is carried out by 'gamete' cells. Gametes are specialized cells responsible for sexual reproduction. The 'sperm' cells in animals, including humans, fall under this classification.