Which fruit is known for being small and typically round?

The fruit known for being small and typically round is the grape. Grapes are small, often spherical in shape, and come in various colors, including green, red, and black. They grow in clusters and are popular for their sweet and juicy taste. Their size and shape are distinctive characteristics that differentiate them from other fruits listed.

Bananas are elongated and have a curved shape, while lemons are oval and have a textured surface. Apples are larger and more spherical, but they are not as small as grapes. Therefore, grapes stand out due to their small and round nature, making them the correct answer to the question about the shape and size characteristics of the fruit.