No, electrons are not made of quarks; they are both fundamental particles but are different types. Electrons are classified as leptons, while quarks are the particles that make up protons and neutrons. 

• Fundamental particles: According to the Standard Model of particle physics, both electrons and quarks are elementary, meaning they are not composed of smaller subunits and are considered to be point-like.
• Different classifications: Electrons belong to a family of particles called leptons, which are not subject to the strong nuclear force. Quarks are a different type of fundamental particle that are constituents of protons and neutrons and are affected by the strong force.
• Distinct properties: Electrons and quarks have very different properties, such as mass. The smallest quark, the up quark, is much more massive than an electron.