Curated Video
GCSE Biology - DNA Part 2 - Alleles / Dominant / Heterozygous / Phenotypes and more! #64
There are load of terms to know about DNA, and in this video we explain all the main ones - genes, alleles, homozygous and heterozygous, dominant and recessive, genotype and phenotype. Along the way we'll see how genes and inheritance...
Curated Video
Master Dihybrid Crosses: The Step-by-Step Guide to Punnett Squares & Genetic Ratios
In this detailed video, we'll walk you through dihybrid crosses, Punnett squares, and the often-discussed 9:3:3:1 ratio. Get ready to dive deep into the world of genetics! This step-by-step guide to dihybrid crosses using Punnett squares...
Curated Video
Punnett Square Example - Dihybrid Cross
A video explaining and illustrating how to determine the gametes from a two trait cross and how to find the genotype and phenotype ratio from a two trait cross.
Curated Video
Alternate Genetic Crosses
“Alternate Genetic Crosses” models incomplete, codominance, and multiple allele genetic crosses in order to determine the genotype and phenotype of the possible offspring.
Curated Video
Genotype, Phenotype and Punnett Squares Made EASY!
Ever wondered how traits are inherited? How can we predict the height of a pea plant or the color of a flower? Dive into the exciting world of genetics with me, Leslie Samuel, as we simplify complex concepts of genotype, phenotype, and...
Curated Video
Understanding ABO Blood Groups and Alleles
This video explains the ABO blood group system which is important for blood transfusion compatibility. The video describes the four blood types and how they are determined by the presence or absence of specific markers on red blood...
Catalyst University
Jacob's Syndrome | A Y-Chromosome Aneuploidy
This video dissects Jacob's syndrome, a benign genetic condition in which males have two Y-chromosomes (genotype XYY).
Catalyst University
Mechanism of X-Chromosome Aneuploidies [Klinefelter's, Turner's, & XXX]
In this video, we explore the mechanisms that cause thoracic outlet syndrome by looking at the relevant anatomy and structures.
Curated Video
Introduction to Genetic Diagrams for Single Gene Inheritance
This video provides an explanation of genetic diagrams and their use in studying single gene inheritance, also known as monohybrid inheritance. Using the example of superpowers inherited through a single gene, the video demonstrates how...
msvgo
Hardy-Weinberg Principle
It explains Hardy-Weinberg principle including concepts such as founder effect, bottle neck effect and Hardy-Weinberg Equilibrium.
Bizarre Beasts
The Strange Thing That Turns Grasshoppers Into Locusts
Locusts don't have to be locusts. When they grow up by themselves, they lead pretty regular, grasshopper lives. But when conditions are right, well, it’s swarming time.
Curated Video
Introduction to Punnett Squares and Genetic Inheritance Analysis
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...
msvgo
Law of Dominance
It explains Mendel's concept of dominant and recessive trait and describes biochemical basis of dominance.
Catalyst University
Genetics | Dihybrid Cross (Example 2)
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)
Visual Learning Systems
Fundamentals of Genetics: Hybrid Cross
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...
Professor Dave Explains
Regulation of Gene Expression: Operons, Epigenetics, and Transcription Factors
We learned about gene expression in biochemistry, which is comprised of transcription and translation, and referred to as the "central dogma" of molecular biology. But how is this process regulated? How does a cell know which genes to...
FuseSchool
Codominance
In this video we are now going to look at codominance. You need to understand the difference between genotype and phenotype. The genotype is the set of genes. The phenotype are the physical characteristics that are coded for by the...
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...
Visual Learning Systems
Fundamentals of Genetics: Genotype and Phenotype
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...
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia