You are boating at night you see single white light directly ahead what should you do

Sailors while sailing at night uses certain colors of light to communicate.

According to the given condition, the white light appearing directly ahead of someone's direction, indicates that another boat (vessel) is sailing right ahead and communication must be done by blowing horn or by using the red light(left side/port side) or the green light (right side/starboard side). One must give way to avoid collision.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.