**Core Concept**
Uterus bicornis bicollis is a rare congenital anomaly of the uterus where there are two separate uterine horns with two separate cervices. This condition arises due to the failure of the Müllerian ducts to fuse properly during embryonic development.

**Why the Correct Answer is Right**
In uterus bicornis bicollis, each uterine horn has its own cervix, and the two horns are separated by a septum. This condition can lead to difficulties in pregnancy, including recurrent miscarriages and preterm labor. The presence of two cervices can also increase the risk of cervical ectopy and cervical incompetence. The Müllerian ducts are responsible for the development of the female reproductive tract, and abnormalities in their fusion can result in various uterine anomalies, including uterus bicornis bicollis.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because uterus bicornis bicollis is indeed characterized by the presence of two separate uterine horns.
**Option B:** This option is incorrect because each horn of the uterus in uterus bicornis bicollis has its own cervix.
**Option C:** This option is incorrect because the presence of a septum separating the two uterine horns is a characteristic feature of uterus bicornis bicollis.

**Clinical Pearl / High-Yield Fact**
Uterus bicornis bicollis is a rare condition, but it is essential to recognize it during prenatal ultrasound or during a pelvic exam to provide appropriate counseling and management to the patient. This condition can increase the risk of complications during pregnancy, and early recognition can help in planning for a safe delivery.

**Correct Answer: None**