Slide 1What happens after fertilization? A sperm enters an ovum, and the nuclei combine to form one with 46 chromosomes. More free powerpoints at www.worldofteaching.com…

Slide 1Cell Determination & Cell Differentiation Slide 2 Overview of birth lineage and death Slide 3 All cells are derived from a singl cell Slide 4 Cell Determination…

Slide 1 Early Development Review  Zygote = 1 celled stage  Cleavage=early cell division (no cell growth)  Morula = solid multicelled embryo  Blastula = “hollow”…

Slide 1 23 Oct. 2014Embryology.ppt1 ANIMAL EMBRYOLOGY A brief essay on relationships of major animal groups. Slide 2 23 Oct. 2014Embryology.ppt2 What IS an Animal? Petunia…

Slide 1 Animal Evolution Slide 2 I. Animal traits A. Heterotrophic B. Mobile C. Lack cell walls D. Possess nerve and striated muscle Slide 3 D. Reproduces sexually 1. Diploid…

Slide 1 Aim: What happens after fertilization? Do Now: Describe the process of fertilization. A sperm enters an ovum, and the nuclei combine to form one with 46 chromosomes.…

Slide 1 Animal Body Systems Objectives…(At the end of this lecture you should be able to):  Summarize the functions of the digestive, respiratory, circulatory, nervous,…

Slide 1 By Lauren and Jocelyn Slide 2 Fertilization  The first step in embryonic development is fertilization (the joining of male and female gametes)  Fertilization…

Slide 1 Slide 2 V D Latent Dorsalizing Factors The Point of Fertilization Orients the D/V Axis of the Frog Slide 3 ß-Catenin Acts as a Morphogen to Pattern the D/V Axis…

Slide 1 Animal Development Chapter 47 Slide 2 WHAT’S NEXT? Once copulation ends… Slide 3 Fertilization In mammals, sperm travel from the vagina to the fallopian tube…