Step 1: Understanding Parthenogenesis
Parthenogenesis is the formation of an embryo from an unfertilized female gamete (egg).
This process occurs in certain plants, invertebrates, and some vertebrates, leading to asexual reproduction.
Step 2: Analyzing Other Options
Apomixis refers to a type of asexual reproduction in plants that does not involve fertilization.
Apogamy is the development of a sporophyte from a gametophyte without fertilization.
Apospory is the direct formation of a gametophyte from sporophytic cells, bypassing meiosis.
Since parthenogenesis specifically refers to embryo formation from an unfertilized female gamete, the correct answer is (4) Parthenogenesis.
If the roots of $\sqrt{\frac{1 - y}{y}} + \sqrt{\frac{y}{1 - y}} = \frac{5}{2}$ are $\alpha$ and $\beta$ ($\beta > \alpha$) and the equation $(\alpha + \beta)x^4 - 25\alpha \beta x^2 + (\gamma + \beta - \alpha) = 0$ has real roots, then a possible value of $y$ is: