Question #1. The guidelines are contained in the original zygote. What concept? Question #2. Some genes switched on all the time whereas other are genes are "turned off" at certain stage of development. What concept?
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- The following are various developmental phenomena relating to the concepts and principles in developmental biology. A. Concept of apoptosis B. Concept of prefomed guidelines C. Concept of programmed gene action D. Concept of capacity E. Concept of fate F. Concept of environmental influences G. Concept of induction H. Concept of progressively formed guidelines I. Concept of Differentiation J. Concept of guidelines K. Concept of Gradient L. Concept of differentiation Question #1. A committed cell follows strictly its developmental pathway no matter what. What Concept? Question #2. A lot of our nerve cells degenerate so that the nuerotropic factors which is critical survival factor would be enough to sustaint he development of the entire organism. What concept? Question #3. The paternal and maternal genes. What concept?The following choices are various developmental phenomena relating to the concepts and principles in developmental biology. A. Concept of apoptosis B. Concept of prefomed guidelines C. Concept of programmed gene action D. Concept of capacity E. Concept of fate F. Concept of environmental influences G. Concept of induction H. Concept of progressively formed guidelines I. Concept of Differentiation J. Concept of guidelines K. Concept of Gradient L. Concept of differentiation Question #1. The dorsal lip of blastophore influences the formation of the neural tube and the flanking mesoderm. What concept? Question #2. The outermost part of the cup-shaped embryo is destined to form the nervous system and the skin. What concept?The following choices are various developmental phenomena relating to the concepts and principles in developmental biology. A. Concept of apoptosis B. Concept of prefomed guidelines C. Concept of programmed gene action D. Concept of capacity E. Concept of fate F. Concept of environmental influences G. Concept of induction H. Concept of progressively formed guidelines I. Concept of Differentiation J. Concept of guidelines K. Concept of Gradient L. Concept of differentiation Question #1. During the cleavage stage, the masked messenger RNA from the developing oocyte controls the cleavage patterns. During the blastula stage, specific genes are activated; hence there is appearance of new proteins. What concept? Question #2. Catfish collected in the polluted waters of Pampanga River were found to have ruptured and vascularized brain. What concept?
- The following are various developmental phenomena relating to the concepts and principles in developmental biology. A. Concept of apoptosis B. Concept of prefomed guidelines C. Concept of programmed gene action D. Concept of capacity E. Concept of fate F. Concept of environmental influences G. Concept of induction H. Concept of progressively formed guidelines I. Concept of Differentiation J. Concept of guidelines K. Concept of Gradient L. Concept of differentiation Question #1. During the cleavage stage, the masked messenger RNA from the developing oocyte controls the cleavage patterns. During the blastula stage, specific genes are activated; hence there is appearance of new proteins. What concept? Question #2. Catfish collected in the polluted waters of Pampanga River were found to have ruptured and vascularized brain. What concept? Question #3. Stem cell technology is based on the principle that an undifferentiated cell is totipotent. What concept?The following choices are various developmental phenomena relating to the concepts and principles in developmental biology. A. Concept of apoptosis B. Concept of prefomed guidelines C. Concept of programmed gene action D. Concept of capacity E. Concept of fate F. Concept of environmental influences G. Concept of induction H. Concept of progressively formed guidelines I. Concept of Differentiation J. Concept of guidelines K. Concept of Gradient L. Concept of differentiation Question #1. The blastomeres can become any cell of the body. What concept? Question #2. The limb bud consists of different cells which give rise to the limb. What concept?The following choices are various developmental phenomena relating to the concepts and principles in developmental biology. A. Concept of apoptosis B. Concept of prefomed guidelines C. Concept of programmed gene action D. Concept of capacity E. Concept of fate F. Concept of environmental influences G. Concept of induction H. Concept of progressively formed guidelines I. Concept of Differentiation J. Concept of guidelines K. Concept of Gradient L. Concept of differentiation Question #1. A secondary embryo is formed when a second dorsal lip of blastophore is grafted into an embryo. What concept? Question #1. Retinoic acid, when used by pregnant women causes developmental abnormalities. What concept?
- The following are various developmental phenomena relating to the concepts and principles in developmental biology. A. Concept of apoptosis B. Concept of prefomed guidelines C. Concept of programmed gene action D. Concept of capacity E. Concept of fate F. Concept of environmental influences G. Concept of induction H. Concept of progressively formed guidelines I. Concept of Differentiation J. Concept of guidelines K. Concept of Gradient L. Concept of differentiation Question #1. The intestine is derived from the endoderm. What concept? Question #2. Metamorphosis in frog. What concept? Question #3. An endodermal cell taken from a late gastrula stage grafted in the region of the ectoderm developed into stomach. What concept?Developmental abnormalities can result from: 1. Under expression of some genes 2. All of these choices are correct 3. Inappropriate interaction among gene products that were expressed in the wrong amounts and wrong time 4. Over expression of some genes 5. corrupted timing of the normal time genes are expressed1. Match each of the terms in the left column to the bestfitting phrase from the right column.a. epistatic interaction 1. divide the body into identical units(segments)b. regulative 2. initiated by binding of ligand todetermination receptorc. modifier screen 3. individuals with cells of more thanone genotyped. RNAi 4. the fate of early embryonic cells canbe altered by the environmente. ectopic expression 5. assign identity to body segmentsf. homeodomain 6. substance whose concentrationdetermines cell fatesg. green fluorescent 7. suppression of gene expression byprotein double-stranded RNAh. genetic mosaics 8. method for identifying pleiotropicgenesi. segmentation genes 9. a DNA-binding motif found incertain transcription factorsj. homeotic genes 10. encode proteins that accumulate inunfertilized eggs and are needed forembryo developmentk. morphogen 11. double mutant has phenotype of oneof the two mutantsl. maternal effect 12. a gene is turned on in an inappropriategenes tissue or at…
- Which of the following play a role as cytoplasmic determinants in directing embryonic development?A. Transcription factorsB. Protein kinasesC. Protein kinase inhibitorsD. ?-cateninE. All of the aboveSUBJECT: Developmental Biology A. CRANIAL (CEPHALIC) NEURAL CREST B. TRUNK NEURAL CREST C. VAGAL AND SACRAL NEURAL CREST Trace their differentiation pathways from the time the precursor cells break away from the neural tube. Make sure that this three (3) derivatives utilize different migratory pathways.What statement best describes the difference between "fate maps" and "specification"? If cells are transplanted from their normal region in an embryo to a different region in a recipient embryo, such cells will alter their fate, but not their specification. Cell fate map describes the allocation of cells to the germ layers, ectoderm, mesoderm, or endoderm, whereas specification describes the exact tissues that each cell will ultimately become. The fate map of an embryo does not change during development -- the fate map of an egg is the same as the fate map of a late blastula -- whereas the specification map of an embryo changes continually as the embryo's development proceeds. The fate map of a cell is determined by labelling that cell and following it during normal development, whereas the specification state of a cell is determined by culturing a cell in an artificial medium and observing what tissues form from it.
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