Activity 6 Prelab_animal Development

Activity 6: Animal Development Pre-Lab Discussion

FERTILIZATION  Joining of a haploid sperm and haploid egg to form a diploid zygote

CLEAVAGE  Earliest divisions of the  

 

zygote Occurs without cytoplasmic addition or enlargement The series of mitotic cell divisions that produces a blastula from a fertilized ovum the basis of the multicellularity of complex organisms also called segmentation.

BLASTULA  A hollow, fluid-filled ball of cell prior to gastrula formation of the early embryo

GASTRULA  Cup-shaped early embryo with two primary germ layers, ectoderm and endoderm, enclosing a primitive digestive tract

NEURULATION  Process by which the CNS develops embryologically  Neural plate  Neural fold  Neural tube

NEURAL PLATE

 Dorsally situated ectodermal thickening

NEURAL FOLD & GROOVE

NEURAL TUBE

You have 30 minutes for this activity. Start….