Première loi de Mendel

Presentation and illustration of Mendel's first law On our website https://clipedia.be, you'll find other videos to help you better understand science. It's easier to navigate on the website because the videos are better categorized. Plus, on Clipedia, you can get answers to your questions. Here, we only answer in exceptional cases... so there's not much time to devote to the usual arguments that arise in the comments. On Clipedia, you'll also find quizzes to check what you've really understood. See you soon! ERRATUM There's an error in the explanations: there's confusion between the concepts of incomplete dominance and codominance. In the video, it is stated that incomplete dominance means that an individual's genotype has a dominant allele and a recessive allele, and that only the dominant allele is expressed. But this is actually the concept of complete dominance. It is therefore necessary to distinguish between these three different concepts: Dominance (complete): a dominant allele and a recessive allele make up an individual's genotype, and only the dominant trait will be expressed in the individual's phenotype. Incomplete dominance: the genotype is composed of two different dominant alleles. The individual's phenotype will be an intermediate expression between these two alleles. For example, a parrot will have green plumage if it has a yellow allele and a blue allele, both dominant. Codominance: as with incomplete dominance, the genotype presents two different dominant alleles. The difference lies in the fact that this time, the phenotype will no longer be an intermediate expression between the two traits, but an equal expression of each trait. In this case, the parrot would no longer be green, but yellow and blue (it would have both plumage colors at the same time). My apologies for this error! We hope it hasn't led you too far down the wrong path. See you soon on CliPeDia! And if you'd like to give us a hand in return, don't hesitate to support us on tipeee: https://www.tipeee.com/clipedia. We'll need help to cover the entire program in five years.