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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/14%3A_Embryonic_Development_and_its_Regulation/14.04%3A_The_OrganizerThis page explains the embryonic development of a zygote, highlighting the role of mRNA and protein gradients in determining cell fates, alongside intrinsic signals and cell interactions. It details t...This page explains the embryonic development of a zygote, highlighting the role of mRNA and protein gradients in determining cell fates, alongside intrinsic signals and cell interactions. It details the Spemann organizer's role in gastrulation and parallels with Drosophila development, emphasizing the formation of various organs such as wings, legs, and eyes. Overall, the development process encompasses axis establishment, body part formation, and detail refinement.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/19%3A_The_Diversity_of_Life/19.01%3A_Eukaryotic_Life/19.1.14%3A_ZebrafishThis page discusses the zebrafish as a vital model organism in biological research, highlighting its breeding ease, transparent embryos, and rapid development. It covers "forward" genetics, linking ph...This page discusses the zebrafish as a vital model organism in biological research, highlighting its breeding ease, transparent embryos, and rapid development. It covers "forward" genetics, linking phenotypes to genes, and "reverse" genetics, investigating gene sequences' phenotypic effects. This dual approach has advanced understanding of gene functions in zebrafish, providing insights that could relate to human biology due to genetic similarities.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/11%3A_Genomics/11.12%3A_Forward_and_Reverse_geneticsThis page summarizes the significance of zebrafish (Danio rerio) as a model organism in biological research due to its rapid breeding, transparent embryos, and application in both forward and reverse ...This page summarizes the significance of zebrafish (Danio rerio) as a model organism in biological research due to its rapid breeding, transparent embryos, and application in both forward and reverse genetics. These characteristics facilitate the study of gene functions and associated phenotypes, offering insights into human biology owing to genetic similarities. Additionally, the sequenced zebrafish genome has identified numerous protein-coding genes, enhancing its utility in research.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/14%3A_Embryonic_Development_and_its_Regulation/14.03%3A_CleavageThis page describes cleavage as a crucial early stage of cell division in embryo development post-fertilization, differentiating between holoblastic cleavage (complete division in low-yolk eggs like f...This page describes cleavage as a crucial early stage of cell division in embryo development post-fertilization, differentiating between holoblastic cleavage (complete division in low-yolk eggs like frogs) and meroblastic cleavage (incomplete division in high-yolk eggs like birds). It highlights how meroblastic cleavage occurs in a limited cytoplasmic region, resulting in multiple nuclei and a significant yolk mass, which aids in forming a normal-sized embryo from the fertilized egg.
