Answer: The number of chromosomes found in their gametes is- 37
Gemetes ( also reproductive/ sex cells such as eggs and sperms) are haploid sex cells ( having half number of chromosomes as compared to their parent cell).
They are produced in sexually reproducing organisms by a process of cell division called meiosis.
It is reductional cell division because a diploid parent cell produces four haploid daughter cells ( gametes) that contain half the number of chromosomes to their parent cell.
In this question, number of chromosomes in Llama is 74.
Thus, number of chromosomes found in their gametes would be half that is 37.