Curated Video
MHC Class I and Class II Structure: Function and Difference
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...
Curated Video
Plasma Vs serum Vs antiserum
This video explains the difference between plasma serum and antiserum.
Curated Video
Rh Incompatibility
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...
Curated Video
CSIR NET Life Sciences - UNIT 2 part B
Practice life sciences questions using real examples from 2012.
Curated Video
Incomplete Dominance and Codominance
Humans inherit two alleles for each gene, and their interaction determines how traits are expressed—homozygous if both alleles are the same, and heterozygous if they differ. In complete dominance, one allele masks the other; in...
Curated Video
Codominance: Non-mendelian Inheritance
Multiple allele traits are controlled by a single gene with more than two allele variants, as seen in the ABO blood group system, which involves the alleles IA, IB, and i. The six possible genotypes result in four blood types, with IA...
Curated Video
ABO Genes: Blood Group Antigens at Genetic Level
The ABO gene on chromosome 9 encodes enzymes that determine an individual’s blood group by modifying the H antigen into A or B antigens via glycosyltransferases. The A allele produces an enzyme that adds N-acetylgalactosamine (GalNAc),...
Professor Dave Explains
B Cells and Antibodies (Humoral Immunity)
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...
Science ABC
What Happens When You Marry Someone Without Knowing Their Blood Group?
There are many things to keep in mind when choosing your life partner. One such thing is the blood group. We don’t think of this at first, but differences in blood groups can lead to complications. More specifically, these problems can...
Science ABC
Immune System: Innate and Adaptive Immunity Explained
The immune system (or immunity) can be divided into two types - innate and adaptive immunity. This video has an immune system animation. The innate immune system consists of defenses against infection that are activated instantly as a...
Curated Video
Antibody
A protein produced by the immune system that attacks a harmful agent, such as a virus or bacteria. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Antigen
A molecule or fragment of a molecule that triggers an immune response, causing the body to produce specific antibodies against it. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Immune Defence: Part 2
Antibodies combat some of the strongest foreign invaders that enter your body. What are antibodies and how do they work? Biology - Cells And DNA - Learning Points. Whenever a germ or infection enters our body, white blood cells,...
Healthcare Triage
The Drug Shortage Putting Newborns at Risk
For some women, a simple shot during pregnancy and then right after labor can prevent a huge amount of suffering for both parents and future children. So what happens when there’s a shortage that prevents that shot from happening?
Curated Video
GCSE Biology - Monoclonal Antibodies #40
In this video, we cover the following: - What a monoclonal antibody is - What 'B-cells' (or 'B-lymphocytes') are - How antigens stimulate the production of antibodies - How we combine B-cells and Tumor cells to produce Hybridomas -...
The Guardian
What's in a vaccine and what does it do to your body?
There are all sorts of different vaccines but many of them share specific types of ingredients. Josh Toussaint-Strauss talks to Prof Adam Finn to find out what is in most conventional vaccines, as well as what's going on in our bodies...
Curated Video
The Humoral Response - B Cell Activation, Antibody Production & Memory Cells
In this video, we demystify B cell activation, antibody production, and memory cell formation in this informative video. Learn how your immune system battles pathogens like the West Nile virus, how B and T cells work together, and the...
Let's Tute
Understanding Blood Groups and Transfusions
This video explains the difference between blood groups and why it is important to match the right blood type for transfusions. It also covers the RH factor and how it affects pregnancy.
Professor Dave Explains
Types of Immune Cell Receptors
We've talked a bit about how immune cell receptors operate, but now it's time to get specific about the types of receptors that immune cells can express. That means we need to discuss antigen receptors, costimulatory receptors,...
Catalyst University
Anatomy - Positive & Negative Selection for Lymphocytes
In this video, we explore the basic processes of positive selection and negative selection, which select competent lymphocytes that don't attack our own self-cells.
Healthcare Triage
Vaccine Development, Covid-19, and MRNA
In this last episode of our six-part series on vaccinations, supported by the National Institute for Health Care Management Foundation, we cover vaccine development - particularly in the context of the current global pandemic. We discuss...
Curated Video
Understanding Vaccination: How Memory Cells Respond to Invasion by Pathogens
This video provides an overview of vaccination, explaining how it triggers an immune response and manufactures memory cells, which enables the body to respond quickly and effectively to a particular pathogen in the future. The video also...
JJ Medicine
Hypersensitivity Pneumonitis | Hot Tub Lung, Farmer’s Lung, Bird Fancier’s Lung, Bagassosis
In this lesson, we discuss the condition known as hypersensitivity pneumonitis, including different types such as Hot Tub Lung, Farmer’s Lung, Bird Fancier’s Lung, Bagassosis, etc. The causes/triggers, exposures and pathophysiology of...
Catalyst University
Clonal Selection EXPLAINED
In this video, we discuss the basic idea of clonal selection.