Cmmb 403 midterm Study guides, Class notes & Summaries
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CMMB 403 Midterm Question and answers correctly solved
- Exam (elaborations) • 22 pages • 2024
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CMMB 403 Midterm Question and answers correctly solved 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) - ...
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CMMB 403 Midterm 1 Question and answers 100% correct
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CMMB 403 Midterm 1 Question and answers 100% correct CMMB 403 Midterm 1 
 
 
Describe the RTK signal transduction pathway when activated by the FGF ligand 
FGF ligand dimerizes RTK receptor. Receptor is phorphorylated and attracts adaptor/GEF. GEF begins phosphorylation cascade: GEF to Ras to Raf to Mek to Erk to TF. TF transcribes gene 
 
 
Describe the JAK-STAT pathway when activated by FGF 
FGF ligand dimerizes RTK. JAK2 proteins cross-phosphorylate. Both JAK2s phosphorylate a STAT5 (which is...
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CMMB 403 Midterm Question and answers correctly solved 2024
- Exam (elaborations) • 22 pages • 2024
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CMMB 403 Midterm Question and answers correctly solved 2024 
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...
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CMMB 403 Midterm 1 Question and answers already passed 2024
- Exam (elaborations) • 20 pages • 2024
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CMMB 403 Midterm 1 Question and answers already passed 2024Describe the RTK signal transduction pathway when activated by the FGF ligand 
FGF ligand dimerizes RTK receptor. Receptor is phorphorylated and attracts adaptor/GEF. GEF begins phosphorylation cascade: GEF to Ras to Raf to Mek to Erk to TF. TF transcribes gene 
 
 
Describe the JAK-STAT pathway when activated by FGF 
FGF ligand dimerizes RTK. JAK2 proteins cross-phosphorylate. Both JAK2s phosphorylate a STAT5 (which is a cytoplasmic tyr...
-
CMMB 403 midterm 2 Questions with complete solution
- Exam (elaborations) • 15 pages • 2024
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CMMB 403 midterm 2 Questions with complete solutionCMMB 403 midterm 2 
 
 
Capacitation - correct answer changes to the sperm after it enters the female to be able to fertilize the egg. takes 6 hours to become competent. Sperm become hyperactivated to be able to penetrate the cumulus and the zona p. 
 
what is the acrosome - correct answer tip of sperm. releases enzymes to degrade the zona pellucida to allow the sperm DNA to enter. exocytosis of the enzymes to allow contact with the egg 
 
How...
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CMMB 403 midterm 2 Question and answer rated A+ 2024
- Exam (elaborations) • 15 pages • 2024
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CMMB 403 midterm 2 Question and answer rated A+ 2024 
Capacitation - correct answer changes to the sperm after it enters the female to be able to fertilize the egg. takes 6 hours to become competent. Sperm become hyperactivated to be able to penetrate the cumulus and the zona p. 
 
what is the acrosome - correct answer tip of sperm. releases enzymes to degrade the zona pellucida to allow the sperm DNA to enter. exocytosis of the enzymes to allow contact with the egg 
 
How does the sperm bind ...
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CMMB 403 Midterm 1 with complete solutions
- Exam (elaborations) • 20 pages • 2024
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CMMB 403 Midterm 1Describe the RTK signal transduction pathway when activated by the FGF ligand 
FGF ligand dimerizes RTK receptor. Receptor is phorphorylated and attracts adaptor/GEF. GEF begins phosphorylation cascade: GEF to Ras to Raf to Mek to Erk to TF. TF transcribes gene 
 
 
Describe the JAK-STAT pathway when activated by FGF 
FGF ligand dimerizes RTK. JAK2 proteins cross-phosphorylate. Both JAK2s phosphorylate a STAT5 (which is a cytoplasmic tyrosine kinase). The STAT5s dimerize and tr...
-
CMMB 403 Midterm questions and answers rated A+ 2024/2025
- Exam (elaborations) • 22 pages • 2024
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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 ...
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CMMB 403 midterm 2 questions with answers graded A+
- Exam (elaborations) • 15 pages • 2024
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CMMB 403 midterm 2Capacitation - correct answer changes to the sperm after it enters the female to be able to fertilize the egg. takes 6 hours to become competent. Sperm become hyperactivated to be able to penetrate the cumulus and the zona p. 
 
what is the acrosome - correct answer tip of sperm. releases enzymes to degrade the zona pellucida to allow the sperm DNA to enter. exocytosis of the enzymes to allow contact with the egg 
 
How does the sperm bind to the zona pellucida - correct ans...
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CMMB 403 Midterm 1 Question and answers rated A+
- Exam (elaborations) • 6 pages • 2024
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CMMB 403 Midterm 1 Question and answers rated A+ CMMB 403 Midterm 1 
 
 
Stages of Early Embryogenesis - correct answer 1. Fertilization 
2. Cleavage 
3. Gastrulation 
4. Organogenesis 
5. Larval Stage 
6. Gametogenesis 
 
Patterns of Cleavage - correct answer 1. Holoblastic: complete cleavage 
2. Meroblastic: Incomplete cleavage 
 
Germ cells - correct answer Precursors of sperm and egg that are set aside early in development (do not form from embryonic germ layers) 
 
Ectoderm (outer laye...
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