This is a tutorial video that explains what a Punnett square is and how it can be used to analyze and predict genetic inheritance. The video defines important terms such as genotype and phenotype and explains how alleles operate on a...

A second example of a dihybrid cross in which the paternal AaBb gamete is crossed with the maternal AaBb gamete (both parents are doubly heterozygotes for genes A & B)

Language is complex, but children are natural language learners. Language itself is unique to humans, and many scientists want to know more about how humans are capable of learning language. Some theories suggest humans are born to be...

Genome editing tool CRISPR helps reveal genetic regulation behind colors and patterns in butterfly wings



Description: Butterflies and moths constitute 10 percent of all known biodiversity in terms of numbers of...

This clip looks at some of the beneficial and harmful aspects of transgenic plants.

In this program Mendel's work is explored in greater detail by using probability to make predictions of the inheritance of specific traits. The use of the Punnett Square is illustrated through easy-to-understand animations. Other...

We've talked a lot about DNA in this series. Building off of our understanding of nucleic acids in biochemistry, we now know that DNA wraps around histones to form nucleosomes, which then supercoil to form chromatin. But what does a...

Genes are the true replicators, which can help explain a variety of counter-intuitive traits.

This video discusses the structure and function of DNA. The video also talks about the sequencing of the human genome and its potential applications, such as linking genes to diseases and tracing migration patterns. It provides a basic...

Editing genes is at the forefront of global efforts to boost harvests through biotechnology. How does that stack up against consumers' growing appetite for organic food? And how is China aiming to capitalize on the latest gains in this...

Elephants rarely get cancer, and scientists may have finally figured out why.

This video provides an overview of the Human Genome Project, a major international scientific research project aimed at sequencing and mapping all the genes that make up human DNA. The video describes how the project was carried out,...

A mutation is a random change in the DNA. Mutations can be neutral, which means it does not cause a change in a trait of the organism, or it could cause a beneficial or a harmful mutation. There are a few different types of mutations -...

The human genome project was an enormous project that saw scientists around the world collaborate to work out the sequence of bases in the human genome. The project started in 1990 and was completed in 2003, 2 years ahead of schedule....

A brief discussion on Mendel's law of segregation followed by an in-depth Punnet square (monohybrid cross) example.<br/>

Restriction Enzyme Set: 3. This clip shows how restriction enzymes are used to produce recombinant DNA.

This video explores agricultural solutions that can help feed the growing human population. It discusses three methods: genetically modified organisms (GMOs) to control pests, fertilizers to increase crop growth, and biological control...

Scientists have found a population of tropical butterflies that may be on its way to splitting into two distinct species based on wing color and mate preference. Researchers describe the relationship between diverging color patterns in...

A man from the U.S. has become the first person to get a heart transplant from a pig, according to the University of Maryland School of Medicine.

Finally! After talking about atoms and molecules in chemistry, big molecules in biochemistry, and all the parts of the cell in this biology series, we are finally ready to look at entire living organisms! But we have to start with the...

The video is about protein synthesis, including the stages of transcription and translation. The video also covers the structure of an RNA molecule and how it is involved in protein synthesis. It goes into detail on the two stages of...

Transfer RNA (tRNA), Codons, and Anticodons

Genetics | Dihybrid Crosses (Example 1)

Could you really be what your mother ate? A groundbreaking experiment by Jirtle & Waterland provided the first scientific evidence of the influence of maternal diet on offspring health. It was not only the first demonstrated of foetal...