Explain the structure of a fruit and provide information about its types.

(N/A) As ovules mature into seeds, the ovary develops into a fruit; the transformation of ovules into seeds and the ovary into a fruit proceeds simultaneously. The wall of the ovary develops into the wall of the fruit, called the $pericarp$.
The fruits may be fleshy, as in guava, orange, and mango, or they may be dry, as in groundnut and mustard. Many fruits have evolved mechanisms for the dispersal of seeds.
In most plants, by the time the fruit develops from the ovary, other floral parts degenerate and fall off. However, in a few species such as apple, strawberry, and cashew, the thalamus also contributes to fruit formation. Such fruits are called $false$ $fruits$.
Most fruits, however, develop only from the ovary and are called $true$ $fruits$. Although in most species, fruits are the result of fertilization, there are a few species in which fruits develop without fertilization.
Such fruits are called $parthenocarpic$ $fruits$. Banana is one such example. Parthenocarpy can be induced through the application of growth hormones, and such fruits are seedless.