What happens right before transcription begins

Imagine that a mouse has white fur because of a mutation in its dna. which of the following conclusions can be drawn

All ova contain sex chromosomes corresponding to: x y xx xy

Which statements best describe monsoons? check all that apply. they force cool, moist air from oceans to rise. they are winds that blow in the opposite direction of a normal wind. they bring rain in the summer and drought in the winter they increase rainfall in south asia, africa, and australia. they influence precipitation as wind moves near a mountain.