Blastula - Study guides, Class notes & Summaries

CMMB 403 Midterm Two major changes of the mid-blastula transition - correct answer 1. Changes in the length of the cell cycle 2. Activation of zygotic genes Key aspects of gastrulation (3) - correct answer 1. Blastula turns into gastrula 2. Formation of blastopore 3. Germ layers move into their final positions What is a blastopore - correct answer Opening of central cavity in embryos Key aspects of organogenesis (3) - correct answer 1. Gastrula turns into neurula (once you see ...

cmmb midterm Question and answers verified to passcmmb midterm RTK pathway and FGFs - correct answer Ligand, RTK, GEF, RAS, RAF, MEK,ERK, TF, Transcription morula, blastula, gastrula blastomere - correct answer morula: cleavage stage embryo, no cavityblastula: cleavage stage, when there is a cavity in the embryogastrula: embryo undergoing gastrulationneurula: embryo as neural tube is formingblastomere: any cell of a cleavage stage embryo cleavage - correct answer rapid cell divisio...

Acquired immunity - Develops after exposure to microbes, toxins, and/or foreign substances Active Immunity - Microbe introduced into the body to stimulate a response to a certain disease Adaptive Radiation - Divergence of a group into species adapted to many ecological niches Adrenal Gland - Regulate hormones of Fight or flight Alimentary system - System involved in the acquisition of nutrients from food Alimentary System - System involved in the acquisition of nutrients from food Ametabol...

CMMB 403 Final Exam with complete solution does the fish organizer and the Nieuwkoop centre have similar functions as their amphibian counterparts? - answeryes they do! at what stage is the xenopus and zebrafish niewkoop centre form? - answerat the late blastula stage (near the end of cleavage) at what stage does the Xenopus and the Zebrafish form it's organizer? - answerat the gastrula stage what is the fish organizer also called? - answerthe embryonic shield Where is the fish Nieuwko...

CMMB 403 Final Exam with complete solution does the fish organizer and the Nieuwkoop centre have similar functions as their amphibian counterparts? - answeryes they do! at what stage is the xenopus and zebrafish niewkoop centre form? - answerat the late blastula stage (near the end of cleavage) at what stage does the Xenopus and the Zebrafish form it's organizer? - answerat the gastrula stage what is the fish organizer also called? - answerthe embryonic shield Where is the fish Nieuwko...

Bio 112 Exam Martin Ball State Questions and Answers Already Passed mollusca body plan shared features -foot: mass of muscle tissue used for movement and/or manipulation -visceral mass: clump that contains most of the organs -mantle: tissue that drapes over the organ clump and secretes the shell in shelled members 4 characteristics shared by all animals -eukaryotic- membrane bound nucleus and organelles -multicellular -heterotrophic- consumes food to get energy -have tissues...

How has developmental biology impacted modern medicine? - Answer-IVF (in vitro fertilization) teratology - study of congenital abnormalities Birth defects, prenatal diagnosis cloning What is regulation? - Answer-the ability to respecify cells so that the removal of cells destined to become a particular structure can be compensated for by other cells producing that structure Who discovered Regulation? - Answer-Roux What is determination? - Answer-the second and irreversible stage of ...

Steps of embryonic development Correct Answer-1) Zygote (fertilized egg) undergoes early cleavages -> morula (group of equivalent, undistinguishable cells) 2) As morula grows, cell acquires specific characteristics & some morphological differences (ex. embryonic axes) -> blastula (characterized by presence of hollow cavity, blastocele) 3) Gastrulation (gastrula) originates 3 definitive germ layers (ectoderm, mesoderm, endoderm) 4) Once scaffold & primordial for tissues & organs laid out...

embryology definethe study of prenatal development of gametes, fertilization and development of embryos and fetuses what are the processes of human developmentdene regulation differentiation morphogenesis gametogenesisformation of mature eggs and sprem (1N halpoid) fertilizationfusing of sperm and egg form a zygote (2N diploid) cleavagerapid mitotic cell divisions of zygote (early embryo) to form the multicellilar embryo (blastula)

Gametes are formed within the gonads (testis and ovaries) and the tissue that directly creates the gametes is generically called: germ line Name two tissue types/organs formed by the endoderm digestive tube, respiratory tube Name two tissue types/organs formed by the ectoderm skin cells, CNS Name two tissue types/organs formed by the mesoderm Red blood cells, organs Exogenous agents that cause disruptions during development resulting in the formation of congenital defects teratogens Th...