Question: The apartment has a modern and bright living room with a large and comfortable kitchen fully equipped
Please fix the punctuation.
Fixed: [The apartment has a modern and bright living room with a large and comfortable kitchen, fully equipped.]

Question: Checking the cells for specific genes can now be done on the fetal cell cultures
Please fix the punctuation.
Fixed: [Checking the cells for specific genes can now be done on the fetal cell cultures.]

Question: The total cost will vary depending on the needs of the client and will be determined as the process unfolds
Please fix the punctuation.
Fixed: [The total cost will vary depending on the needs of the client and will be determined as the process unfolds.]

Question: The track management had put a lot of work to address the premier errors and the crowd failed as neither
Please fix the punctuation.
Fixed:
[The track management had put a lot of work to address the premier errors, and the crowd failed as neither.]