Genesis 1:27 states that human beings are "created" in the image of God. One of the issues that might be considered is what does it mean to be created in the image of God. The Bible also states that God created human beings in two genders, which implies until finite time that which had existed, and that had been created was without gender.
It seems that a possible conclusion from this is that it takes two genders to reveal a more complete picture of God. If one generalizes the attributes of both genders, one notices that certain characteristics are more prevalent in one gender than the other. Without taking into consideration the traits of both, one may have a limited view of the totality that is God.
A final observation is that when it states that human beings are created in the image of God, one must look outside of the confines of the physical universe. As the Apostle John tells readers, "God is spirit and those who worship God, must worship God in spirit and in truth" (John 4:24), one may begin to grasp the significance of being created in the image of God. If one thinks about it from this perspective, then the way human beings are created in God's image is that people are separated from the remainder of the animal kingdom because each person receives from God the Spirit.