PPT-GAMETOGENESIS, FERTILIZATION, CLEAVAGE

Dr Katalin Gallatz THE HUMAN DEVELOPMENT STARTS WITH THE FERTILIZATION During this process the oocyte and s perm unite New organism the ZYGOTA develops. DeMayo. FJ, Spencer TE. Jennifer Thornton. April 1, 2015. Happy April Fools’ Day!. *I won’t actually cover this paper, but it’s real and you should check it out at. http. ://www.ncbi.nlm.nih.gov/pubmed/25100711. Definition :. Cleavage is a process of rapid and synchronous mitotic cell divisions of the zygote to form numerous cells for building up the offspring’s body . Cleavage differs from other forms of cell division in that it increases the number of cells without increasing the mass.. Type . III-B to . Target RNA Encoded . Viruses infecting humans. . Presented By: Diana Marquez. Rhinovirus. Common cold. Impacts adults 2-3 times a year and children 6-10.. Introduction. + stranded RNA virus.. gastrulation:reading. Ch 5 p155-. 161 (159-165 in 9. th. edition) . general principles . Ch 8 p286-. 297 (287-297 in 9. th. ) . Bird. Ch8 p298-. 303 (300-304 in 9. th). . Mammals. Mitosis promoting factor. (Begin on Page 463). Fertilization. In human mating, hundreds of . millions. of sperm are ejaculated into the . vagina. . The sperm then pass through the . cervix. , up through the . uterus. , and into the . 2. Hardness . Hardness may be measured in several ways. Moh’s scale – developed by Austrian mineralogist Friedrich Mohs in 1824. Absolute scales – Brinell, Knoop, Rockwell, Vicker’s. 3. Moh’s Scale. internal fertilization allows animals to reproduce sexually.. internal fertilization requires much less expenditure of resources.. internal fertilization produces more offspring, ensuring rapid population growth.. All rocks are made up of 2 or more of these minerals. . Minerals are not rocks!. Silicon and oxygen are the most abundant elements in the crust and in minerals. Oxygen is the most abundant element in minerals. Amanda Porter. WHAT IS IN VITRO FERTILIZATION (. ivf. )?. Process used to treat infertility. Egg and sperm combined in laboratory. Once embryo(s) formed, placed in uterus. Complex and expensive procedure. Developmental Biology UNIT I. Contents. . Fertilization: Definition and types . Events of . Fertilization . in Sea Urchin. Fig. 1 Recognition . of Egg . by . Sperm in Sea Urchin and . Mouse. Sperm contact with egg and . by. Krisztina . H.-Minkó. . Semmelweis University, . Department. of . Anatomy. , . Histology. and . Embryology. . Question of time (anatomy vs. gynecology). Zero time?. Fertilization (anatomy) – clinically usually impossible to determine, uncertain. BSc 4. th. . Semester . (. OPEN ELECTIVE). Other than Geology Main students . Dr Abdullah Khan. Associate Professor. Department of Geology, AMU, Aligarh. FOLDS . Folds are regular wavelike undulations of layers or surfaces present in the rocks. . and Fertilization Barry Bean for BioS 90 & 95 12 September 2008 Life is short. Especially if you’re a sperm cell! Used with permission of the artist, Patrick Moberg Try to remember… when you Iyshwary Vigneswaran Warren. 1,2,3. , Christopher Kupitz. 3. , Soichi Wakatsuki. 2,3. Departments of Bioengineering. 1. & Structural Biology. 2. , SLAC National Accelerator Laboratory. 3. . Introduction.