8. Chicken Genetics - Variety is the Spice of Life скачать в хорошем качестве

8. Chicken Genetics - Variety is the Spice of Life

Have you ever wondered how chickens can be so variable? Well that’s down to an amazing and beautiful process called meiosis, which is the genetically important part of making eggs and sperms. How much potential variation can meiosis cause do you think? A thousand genotypes, a million, a billion maybe? No, not close - keep going! There are over 549 billion possible combinations of paternal and maternal chromosomes that can be created by meiosis, and then there’s a special process called crossing over that creates yet more, variation, and that’s before you even think about allele diversity! If we could have a dollar for every possible combination we’d be much, much richer than Elon Musk was this year. Better not mention that to the chickens, or they might start getting ideas! So join me today for a quick look at the essentials of meiosis. Learn how this wondrous amount of diversity happens. Understanding meiosis just a bit helps us to understand inheritance a lot more. Plus, later on, I will reveal a tip about egg incubation, from a scientific publication I read while making this video. This video builds on previous videos of the series, especially videos three to five. So you might want to review those first, especially if anything seems a little difficult to you. Otherwise, I hope to see you at the other of the video! References N. Pokhrel, D. Sela-Donenfeld, Y. Cinnamon. 2021. The chick blastoderm during diapause, a landmark for optimization of preincubation storage conditions. Poultry Science, Volume 100, Issue 8. ISSN 0032-5791, https://doi.org/10.1016/j.psj.2021.10.... https://www.sciencedirect.com/science...