So like a true hero, you did the right thing: you registered to be a donor and put yourself in position to save someone's life. Now the call has come — time to spring into action, Hero!

Why waste time cutting and copying cells? Microsoft Excel can automatically sort columns or rows alphabetically.

What is cholesterol and how do I manage cholesterol levels?

This animation provides background on coronaviruses and COVID-19. The animations shows what happens inside the body when someone gets COVID-19, the novel coronavirus.

A real frog's stem cells were used to create a tiny, self-healing living robot!

The Major Histocompatibility Complex (MHC) is a tightly linked gene cluster encoding cell surface molecules essential for antigen presentation and graft rejection, known as histocompatibility antigens. In humans (HLA on chromosome 6),...

This video explains how the technique of flow cytometry is used to detect for the presence of apoptotic cells in a given cell population. The technique used is Annexin V-Propidium iodide staining. Annexin V is a calcium-dependent...

The Major Histocompatibility Complex (MHC) is a tightly linked gene cluster encoding cell surface molecules essential for antigen presentation and tissue graft rejection, known as histocompatibility antigens. In humans (HLA complex on...

The Rh factor is a protein found on red blood cells; individuals with it are Rh positive, while those without are Rh negative, and it is inherited genetically. Rh incompatibility occurs during pregnancy if an Rh-negative mother carries...

In 2017, a swine flu outbreak in Maryland demonstrated how viruses can jump from animals to humans, potentially sparking epidemics. Host jumps occur when a virus mutates just enough to infect a new species, evade its immune system, and...

The cell cycle is a highly regulated process of eukaryotic cell division involving interphase (G1, S, G2 phases) for growth and DNA replication, followed by mitosis for chromosome segregation and cell division. Progression through the...

The 1943 Luria–Delbrück experiment, known as the "Fluctuation Test," demonstrated that mutations in bacteria occur randomly rather than as a directed response to environmental stress, such as viral infection. By showing wide variation in...

Aquaporins are specialized membrane proteins that form water-selective channels, allowing rapid water movement across cell membranes while blocking ions and solutes. Structurally, they consist of six transmembrane α-helices and loop...

With T cells thoroughly covered, let's move on to B cells and antibodies, which are the central elements of humoral immunity. How do B cells develop? What are antibodies, how many kinds are there, and what do they do? Let's get a quick...

It took a very long time, but we are finally finished with the clade Protostomia, or first mouths. Now it's time to tackle Deuterostomia, or second mouths, a clade containing only three phyla. This will take some time, since one of those...

Recognize Inventory Sales - Journal Entries

This video is explaining how eye works for kids.

Proteins are complex macromolecules that are considered 1 of the 4 macromolecules that make up life. Proteins have many functions beyond being structural components of cells.

This video provides a brief and engaging overview of DNA and its significance in biology. It explains how DNA is the genetic material that determines the unique characteristics of living organisms, how it is passed down through...

Explore how machine learning can diagnose malignant and benign breast tumors in this AI science project

The plasma membrane or cell membrane is an intricate structure made of macromolecules that work together to protect the cell. Think of it as the security guard of the cell - letting important substances in, and letting others out.

Explore how changing the depth that the Minimax algorithm explores can change the decisions that it makes

Evolution & Classification of Life | From Single Celled Bacteria to Humans

Viruses and bacteria have their own set of characteristics that distinguish them. But what are those differences? Well, in this video, we will cover the main differences between those 2 groups of microbes.