'Gray crescent' presentation slideshows

Chapter 07-Amphibians & Fish Early development and axis formation

Chapter 07-Amphibians & Fish Early development and axis formation. 7.1 Formation of the parallel arrays of microtubules extend along the vegetal hemisphere along the future dorsal-ventral axis. These microtubules allow the cortical cytoplasm to rotate with respect to the inner cytoplasm.

2.53k views • 75 slides

Chapter 38 Reproduction and Development (Sections 38.9 - 38.11)

Chapter 38 Reproduction and Development (Sections 38.9 - 38.11). 38.9 Overview of Animal Development. All sexually reproducing animals begin life as a zygote, the diploid cell that forms at fertilization

921 views • 69 slides

Reproduction & Embryology

540 views • 33 slides

Early Vertebrate Development

Early Vertebrate Development. Axis Determination Amphibian Early Development: Frog Fish Early Development: Zebra Fish. Heads or Tails? Axis specification . Common theme in early development Conserved mechanisms Divergent mechanisms. Early Vertebrate Development: Xenopus.

1.28k views • 32 slides

Animal Reproduction

Animal Reproduction. Asexual. Clones Very little energy expended Types: Fission: separation of organism into two new cells (amoeba) Budding: splitting off of new individuals from existing ones (hydra)

245 views • 18 slides