[Solved] Which of the following is a possible human genotype that could result from nondisjunction of the sex chromosomes in one of the parental gametes? A)XXY B)XYY C)XXX D)XO E)All of these choices are correct. Vestibular Glands: Glands located near the vaginal opening that produce lubrication during sexual arousal. Vagina: The muscular tube leading from the external genitals to the cervix of the uterus in females, involved in intercourse and childbirth. Labia Minora: The smaller, inner folds of skin surrounding the vaginal opening, playing a role in protecting the vaginal and urethral openings. Labia Majora: The larger outer folds of skin that enclose and protect the other external reproductive organs in females.