"DNA helicase" as the unwinding the double helix so that the other protein involved in replication have access to the bases. without helicase to unwind the DNA, The bases would remain stuck together and enzymes wouldn't be able to read them to make a new strand.
* the answer is : DNA HELICASE->UNWINDS ENTIRE DNA HELIX
Hope I help:)
The answer is : A bios or cmos jumper. The jumper acts as a switch by closing (or opening) an electrical circuit. Clearing the CMOS on your motherboard will reset your BIOS settings to their factory defaults. After clearing the CMOS, you'll need to access the BIOS setup utility and reconfigure your hardware settings.
Reactive changes are the type of changes that are necessitated unexpected environmental events or pressures. Organiyations or businesses make such reactive changes in their practices after some threat or opportunity has already occurred.
Other types of changes are anticipatory changes, that are the oppsite because they are planned changes.