Identical Twins Occur When ________

question 12

Multiple Choice

Identical twins occur when ________.

• A) two eggs are released and are fertilized by two different sperm
• B) two eggs are released and are fertilized by the same sperm
• C) one egg is released and is fertilized by one sperm, and the pre-embryo later splits into two
• D) one egg is released and is fertilized by one sperm, and the fetus later splits into two

---

Definitions:

Ectopic Pregnancy

A pregnancy where the fertilized egg implants outside the uterus, often in a fallopian tube, posing serious risks.

Fallopian Tubes

Tubes through which eggs travel from the ovaries to the uterus in the female reproductive system.

Genital Warts

A sexually transmitted infection characterized by small, flesh-colored or gray growths in the genital area, caused by certain types of the human papillomavirus (HPV).

Chlamydia

A common sexually transmitted infection caused by the bacterium Chlamydia trachomatis, often asymptomatic but can cause significant health issues if untreated.