答：石女多数染色体正常，即46XX,乳房和外阴、卵巢发育都正常，只是子宫未融合，阴道没有腔化。部分石女染色体为46XY，即两性畸形，俗称二姨子，女性面貌但无乳房发育，无卵巢，反而有睾丸。

　　Answer: stone female majority chromosome is normal, namely 46XX, breast and vulva, ovarian development is normal, just the uterus did not fuse, the vagina does not have lumen. Part of the chromosome is 46XY, namely hermaphroditism, commonly known as the second aunt, the female face but no breast development, no ovarian, but testicular.