To solve this problem, we need to identify the phenomenon where a female gamete develops into an embryo without fertilization. Let's analyze the options:$\newline \bullet$Option 1: Autogamy - This refers to self-fertilization, where pollen from the same flower fertilizes the ovule. It involves fertilization, so it is not the correct answer.$\newline \bullet$Option 2: Parthenocarpy - This is the development of fruit without fertilization, leading to seedless fruits. It does not involve the development of an embryo, so it is not the correct answer.$\newline \bullet$Option 3: Syngamy - This is the fusion of male and female gametes during fertilization. It involves fertilization, so it is not the correct answer.$\newline \bullet$Option 4: Parthenogenesis - This is the development of an embryo from an unfertilized female gamete. It occurs without fertilization, making it the correct answer.$\newline$Therefore, the correct phenomenon is Parthenogenesis, which corresponds to Option 4.