CUET UG Biology Unit Test 2 Results QUIZ START #1. Monosporic development” of the female gametophyte refers to: (A) Development of the embryo sac from all four megaspores. (B) Development of the embryo sac from a single functional megaspore. (C) The presence of only one ovule in an ovary. (D) The formation of only one embryo in a seed. Next