Part 2: Monohybrid Cross. Randomly (without looking) take two beads out of Beaker 1. This is the genotype of Individual #1. Record the genotype in Table 1. Do not put these beads back into the beaker.
The Norwegian Johan Vaaler is usually called the inventor of the paper clip. Norway had no patent office, so he filed an American patent for a set of square and triangular clips. That was in 1901. And maybe it was the first paper clip patent.
The paper clip seems like a simple solution to binding loose papers, but it wasn't invented until the creation of cheap steel wire. Steel wire is strong enough to hold the shape but bendable enough to be twisted into a clip and stretched over stacks of paper. Paper clips are traditionally made of galvanized steel wire, but others are made of brass, stainless steel, vinyl-covered wire or even plastic. Before paper clips, people bound stacks of papers together with straight pins or tied them together with ribbon or string.