Professor Dave Explains
The Psychology of Emotion and Stress
Humans, just like most other mammals, display a wide variety of emotional states. But what are emotions? Why do we have them? What purpose do they serve in an evolutionary context? Let's get to the bottom of emotions right now!
Professor Dave Explains
Beyond Mendelian Genetics Complex Patterns of Inheritance
We've already learned about Mendelian genetics, which taught us about dominant and recessive alleles and the laws that govern their inheritance. But things are not always so simple. There are situations that go beyond this basic...
FuseSchool
What are Mendel and Genetic Crosses
Gregor Mendel that came up with the correct hypothesis for how inheritance of traits works. Mendel published his ideas in 1866, but it took until the 1900’s for his ideas to be recognised. Mendel studied the inheritance of different...
Professor Dave Explains
Mendelian Genetics and Punnett Squares
For all of human history, we've been aware of heredity. Children look like their parents. But why? When Gregor Mendel pioneered the field of genetics, he began to try to answer that question, and now that we know about chromosomes, all...
Professor Dave Explains
Inheritance of X-Linked Genes
We all know that DNA is the molecule of heredity, but we didn't always know that. It had to be demonstrated empirically. As it happens, some of the first evidence put forth had to do with genes found on the X-chromosome of fruit flies,...
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BIOLOGY - Genetics - Mitosis
Mitosis produces identical copies of cells, and is involved in growth, cell repair and asexual reproduction - which is how simple organisms reproduce. When cells divide by mitosis, two new cells form and each cell is identical to one...
FuseSchool
BIOLOGY - Genetics - Common Terms Used in Genetics
Learn exactly what these different terms mean, that you will come across in genetics and cell division: Gamete, Chromosome, Gene, Allele, Dominant, Recessive, Homozygous, Heterozygous, Genotype, Phenotype, Haploid & Diploid
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Genetic engineering
In this video we'll go in depth with genetic engineering; on how it is made and what is it used for! Keep watching to unravel the meaning of genetics!
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BIOLOGY - Genetics - Stem Cells
Our bodies are the ultimate factory. Every cell has its specific job to do, and is shaped to do that job perfectly. The fate of each cell is determined during the embryo stage, and then cannot be changed. However, cutting-edge research...
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Punnett Squares
Mendel proposed that you inherit a gene either from your mother, or from your father. But not a mixture of both. In this video we are going to look at monohybrid crosses using Punnett squares. A monohybrid cross is the study of the...
Professor Dave Explains
Brain Damage and Neuroplasticity
At this point, we understand how important the brain is. So naturally, when the brain is damaged in some way, it is usually disastrous for the individual. What are the different types of brain damage? How does the brain respond? We will...
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Understanding Meiosis: The Key to Genetic Diversity
This video explains the process of meiosis, which is essential for sexual reproduction. It details how cells undergo two rounds of division to produce four genetically diverse sex cells with only half the number of chromosomes. Through...
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What is RNA
DNA is a type of nucleic acid. And in this video we are going to have a quick look at another type; RNA. We have both DNA and RNA in our bodies. We need them both! DNA is the blueprint; it contains all of the instructions for the cell to...
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Human Reproduction: From Gametes to Birth
This video provides an informative overview of human sexual reproduction, detailing the roles of male and female reproductive systems in creating and nurturing a fetus. From the production of gametes to fertilization, embryonic...
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What Is Asexual Reproduction
Asexual reproduction only needs one parent; all the offspring are clones. This means they are genetically identical to one another and to the parent. Many plants use asexual reproduction, like spider plants. Bacteria also reproduce...
Neuro Transmissions
Neuroscience of Depression
About 1 out of every 14 people suffers from depression. What causes depression in the brain? Is depression inherited? And importantly, does depression medication work? In this video, we discuss the cause of depression, the changes in the...
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Mutations
So, what causes mutations? Well, this is where science fiction meets science fact, sort of. In the backstory of many superheroes there will be a meeting with a radioactive substance - be it cosmic rays or radioactive waste. In real life,...
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GMOs
Genetically modified organisms, or GMOs, have had their DNA artificially modified by humans, using modern genetic manipulation techniques. By changing the DNA, so changing the genome of an organism, means we can change its...
Professor Dave Explains
Charles Darwin's Idea: Descent With Modification
Now that we've learned about molecules and cells and the simplest forms of life, we are ready to understand how all of life on earth evolved from a single common ancestor. Given our newfound knowledge about the chromosomal theory of...
FuseSchool
What is Mitosis?
Mitosis produces identical copies of cells, and is involved in growth, cell repair and asexual reproduction - which is how simple organisms reproduce. When cells divide by mitosis, two new cells form and each cell is identical to one...
Professor Dave Explains
Gene Therapy
When we looked at some areas of biotechnology earlier in the series, we briefly touched on gene therapy, without saying much about what it is. Now we are ready to dive into this topic and see what it is all about. If a person has a...
FuseSchool
Inherited Genetic Disorders
This girl has six fingers on her left hand. She has a condition called polydactyly, which causes extra fingers or toes. Her father and grandmother as well as some of her cousins also have the condition. This should give you a clue about...
Wonderscape
Science Kids: All About Genetics
This video is a lesson on genetics, specifically focusing on the inheritance of traits from parents to offspring. The teacher explains the concept of genetics and introduces Gregor Mendel, the father of genetics. The video also discusses...
Visual Learning Systems
Traits and Heredity: Inherited Traits
Upon viewing the Traits and Heredity video series, students will be able to do the following: Define traits as the distinguishing characteristics of an organism. Describe heredity as the process of passing on traits from parents to...