Category: Free Courses

The vertical line test is a quick way to determine if a given relationship is a function. In this lesson, you’ll learn more about functions and how the vertical line

The ability to determine the DNA sequence of an individual is a powerful tool for paternity questions and criminal investigations, among other uses. This lesson will describe one laboratory method

In this lesson, we will look at helping, or auxiliary, verbs and their roles in sentences. As the name indicates, helping verbs assist in making verbs complete, and they help

Scientific notation is very useful, especially when one is working with huge numbers or microscopic ones. This lesson will help make scientific notation less confusing and clarify when and how

This lesson will review the concepts and mechanisms of agarose gel electrophoresis. It will also summarize the equipment needed to perform the procedure for DNA analysis. Agarose Gel Gel electrophoresis

Polymerase chain reaction (PCR) is a biotechnology technique that is used to amplify pieces of DNA. In this lesson, you will learn about five ingredients necessary to perform PCR: template

In this lesson, we’ll look at the grammatical structure of the English language. What are the basic parts of speech that make up the building blocks of sentences? Keep reading,

Agarose gel electrophoresis plays a key role in genetic engineering experiments. In this lesson, you’ll learn what agarose is and how electrophoresis works. You’ll also discover the use of agarose

In this lesson, you will learn why the slope of a vertical line is called undefined or infinite. You will also learn about the equation of a line with undefined

In this lesson, we’ll review place value and find out how it’s useful when writing numbers in expanded form. We’ll also look at a few examples of numbers written out