## Developmental Biology: Overview and Early Stages
Developmental biology explores the journey from a single cell (the zygote) to a complex, multi-cellular organism. It integrates genetics, molecular biology, and morphology to understand how tissues and organs form.
### 1. Historical Perspectives, Aims, and Scope
* **Historical Perspective:** The field evolved from **Epigenesis** (the idea that organs form step-by-step from an unorganized egg) vs. **Preformationism** (the debunked belief that a miniature
Dadaism1916 during World War I. Dada artists were angry @ society, politics, & traditional culture coz dey believed “reasonable” society had led 2 war.-strange, random, shocking, or anti-art. uses nonsense, chance, collage, readymade, & humor.Post-Impressionism. 1800s, after Impressionism. Artists still used bright color & visible brushstrokes, more emotion, structure, symbolism, & personal meaning than Impressionism.Futurism early 20th-century Italian art movement dat celebr8d
...Pseudomonas striata: Mass Multiplication and Field Application
Pseudomonas striata is an important phosphate-solubilizing microorganism widely used as a biofertilizer in sustainable agriculture. Phosphorus is one of the major essential nutrients required for plant growth and development. It plays a vital role in root development, flowering, seed formation, and energy transfer through ATP synthesis. Although soils contain a large amount of phosphorus, most of it remains in insoluble forms such as...
9. *What are the procedures for gastrectomy*:
Gastrectomy is the surgical removal of part or all of the stomach. Types include partial gastrectomy, total gastrectomy, and sleeve gastrectomy. Indications are gastric cancer, ulcer, or bleeding. Gl tract reconstruction is done after removal to maintain digestion.
10. *List the different approach for colonoscopy*:
Colonoscopy approaches include diagnostic colonoscopy for visualization, therapeutic colonoscopy for polypectomy or bleeding control, sigmoidoscopy
Glycolysis
Glycolysis is the process of breakdown of glucose into pyruvate in the cytoplasm of cells to produce energy. It is the first and most important pathway of carbohydrate metabolism and occurs in both aerobic and anaerobic conditions. In this pathway, one molecule of glucose containing six carbon atoms is converted into two molecules of pyruvate containing three carbon atoms each through a series of enzymatic reactions. During glycolysis, energy is released in the form of ATP and NADH. The
Aristotle’s three laws of thought
Law of Identity: States that A is A, something can only be that which it is and things cannot have more than 1 identity |Law of Non-Contradiction: States that a proposition cannot be true AND false at the same time and in the same respect Ex: Butch is married to Barb but Barb is not married to Butch. If this is true, it cannot be false at the same time, the proposition cannot be true AND false |Law of the Excluded Middle : A proposition is either true OR false
A Half Adder is a combinational logic circuit that adds two single-bit binary numbers. It produces two outputs: Sum (S) and Carry (C). It is called 'half' adder because it cannot handle carry from previous additions. Logic Expressions: Sum (S) = A XOR B = A B -Carry (C) = A ANDB = A·B Full Adder is a combinational circuit that adds three one-bit binary numbers: A, B, and Carry-in (Cin). It produces two outputs: Sum (S) and Carry-out (Cout). Full adders are used to build multi-bit adder circuits.