MEIOSIS, CROSSING-OVER and genetic variability скачать в хорошем качестве

MEIOSIS, CROSSING-OVER and genetic variability

🧬 LESSON 176 of the Biology with Giulia course The generation of many genetically different gametes, the driving force behind the generation of genetic variability in sexually reproducing organisms, derives from the role that chance has mainly in two specific points of the meiosis process: • orientation of the two chromosomes of each pair of homologues in metaphase I; • crossing-over. 🧬 LET'S DRAW UP TOGETHER 📌 TIMESTAMPS ▶ 0:00 Introduction ▶ 1:56 Chromosomes. Diploid and haploid cells ▶ 3:20 Sexual reproduction: meiosis and fertilization ▶ 5:20 Orientation of the two homologous chromosomes in metaphase I ▶ 7:57 Crossing-over 📷 PHOTO SOURCE ▶ Baby silhouette: https://vectorportal.com/it/vector/ba... 🧲 RECOVER USEFUL LESSONS ▶ The eukaryotic cell cycle:    • Il CICLO CELLULARE EUCARIOTICO - inte...   ▶ Mitosis:    • La MITOSI - divisione equazionale del...   ▶ Meiosis:    • La MEIOSI - divisione riduzionale del...   ▶ Gametogenesis:    • La GAMETOGENESI - spermatogenesi, ovo...   ▶ Linked genes and crossing-over:    • GENI ASSOCIATI e CROSSING-OVER: reinc...   ▶ Linked genes - exercises with centimorgans:    • GENI ASSOCIATI - ESERCIZI con i CENTI...   ▶ Map distance and genetic maps:    • La DISTANZA di MAPPA e le MAPPE GENET...   ▶ Haploid and diploid chromosome set:    • CORREDO CROMOSOMICO APLOIDE e DIPLOIDE   ▶ Sexual reproduction and homologous chromosomes:    • RIPRODUZIONE SESSUATA e CROMOSOMI OMO...   ▶ Sister chromatids, mitosis and meiosis:    • CROMATIDI FRATELLI, MITOSI e MEIOSI   📱 FOLLOW ME ON SOCIAL MEDIA ▶ Youtube: https://www.youtube.com/channel/UCsvK... ▶ Instagram:   / biologiacon...​   ▶ Facebook:   / biologia-con...​   ✉ CONTACT ME ▶ Mail: sanità@gmail.com