Final answer:
The fertilized egg of a chimpanzee, or zygote, contains 48 chromosomes, which is the same number as somatic cells of chimpanzees.
Step-by-step explanation:
The fertilized egg of a chimpanzee, also known as a zygote, would contain 48 chromosomes. Somatic cells of chimpanzees have 48 chromosomes, and when a sperm cell (containing 24 chromosomes) fertilizes an egg cell (containing 24 chromosomes), the resulting zygote will have a total of 48 chromosomes. The zygote is diploid, with two sets of chromosomes, one from each parent.