Since the stove top burners and the broiler work, your failure is not caused by a blown fuse. The oven burners in this range are ignited using spark electrodes. Here is a link for a previous answer that provides a technical explanation and troubleshooting for this type of ignition system:
Where can I find specific procedures for checking the control board functions on my Whirlpool gas range model TGS325MQ4?
If that igniter on the bake burner is sparking, I recommend that you check the burner for a spill that could be restricting the gas flow through the holes around that igniter electrode. If you find no problems there and you find no problems with the system, then replacing the burner and igniter will probably fix this failure. The bake burner and igniter in this range have been revised to provide a more dependable ignition process. The burner and igniter are now included in a kit that is part number 8190618. You can order that kit from the
website. Here is a video that shows how to replace that component in this type of range:
Range Bake Spark Electrode and Burner Replacement
. Be sure that you
unplug the range
and shut off the gas supply before accessing internal components.
If you need more help, reply with additional details and we will assist you further.
NOTE: That direct spark ignition system is often difficult to diagnose and repair. If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services