Retinoblastoma and E2F Protein
Retinoblastoma and E2F Protein Summarizes the situation. Over-expression of RB impedes cell growth.
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Role of Cyclins and CDKs
Role of Cyclins and CDKs General mechanism of cyclin-CDK interaction Specific action of cyclin-CDK complexes 🔬 Section 1: Basics of Cyclins and CDKs 📈 Section 2: Cyclin-CDK Interactions and Functions 🧬 Section 3: General Mechanism and Cell Cycle Regulation 🔁 Section 4: Specific Cyclin-CDK Complexes and Their Roles 📚 Section 5: Additional Concepts and Molecular … Read more
The development of the term apoptosis
The development of the term apoptosis The significance of apoptosis Morphological features of apoptosis 🧬 Section 1: Origin and Definition of Apoptosis 🌱 Section 2: Biological Significance of Apoptosis 🔬 Section 3: Morphological Features of Apoptosis 🧪 Section 4: Miscellaneous and Evolutionary Aspects 🔁 Section 5: Applied and Functional Understanding
Cell cycle inhibitors
Cell cycle inhibitors Checkpoints 1. G1 Checkpoint Type of Cells: a. Permanent Go Cells: Those cells that enter Go state and remain in ground state. Example;- neurons, skeletal muscle, RBC b. Stable Go Cells: Those Cells that enter Go state and leave ground state given the right stimuli. Example;- Hepatocytes and Lymphocytes c. Labile Go … Read more
Cell cycle
Cell cycle Phases of the cell cycle M phase Interphase G1 phase S phase G2 phase G0 phase Cell Cycle and Apoptosis – MCQs 1. Which of the following correctly represents the sequence of phases in the cell cycle?A. G1 → G2 → S → MB. G0 → G1 → M → SC. G1 → … Read more
Flagella and Motility
Flagella and Motility Flagella and Motility Flagellar Ultra structure : – Flagellar Synthesis The Mechanism of Flagellar Movement 1. What is the average diameter of bacterial flagella?a) 2 nmb) 10 nmc) 20 nmd) 50 nmAnswer: c) 20 nm 2. Which type of bacteria has a single flagellum at each pole?a) Monotrichousb) Amphitrichousc) Lophotrichousd) PeritrichousAnswer: b) … Read more
Organization and role of microtubules and microfilaments
Organization and role of microtubules and microfilaments a) Microtubules b) Microfilaments Actin Binding Proteins. MCQs on Microtubules and Microfilaments
The cytoskeleton
The cytoskeleton The cytoskeleton is a network of protein filaments and tubules that provide structural support, shape, and organization to a cell. It also plays essential roles in cell movement, division, intracellular transport, and maintaining the cell’s integrity. The cytoskeleton is highly dynamic and constantly changes in response to the cell’s needs. It is composed … Read more
Protein Sorting: Targeting of Proteins to Organelles
Protein Sorting: Targeting of Proteins to Organelles Protein Sorting: Targeting of Proteins to Organelles Protein sorting , Introduction of protein sorting Protein translocation Co-translational translocation Post translational translocation Sorting of proteins to mitochondria Sorting of proteins to chloroplasts Protein destruction MCQ’s Q1. Which of the following organelles receives proteins via co-translational translocation? [PYQ Type]a) Nucleusb) … Read more
Structure and Role of tRNA
Structure and Role of tRNA Structure and Role of tRNA 1. Primary Structure of tRNA These modifications are critical for the structural stability, proper folding, and functional interactions of tRNA during translation. Even in the linear (primary) structure, certain domains (or arms) of tRNA are functionally distinguishable due to the presence of modified bases: 1. … Read more