PATHOLOGY

Detailed explanation-1: -What is genetics? Genetics is the scientific study of genes and heredity-of how certain qualities or traits are passed from parents to offspring as a result of changes in DNA sequence. A gene is a segment of DNA that contains instructions for building one or more molecules that help the body work.

Detailed explanation-2: -Cell biology is the study of how cells work and how they are made, and it is centered on the idea that cells are the fundamental unit of life. By focusing on cell structure and function, research on tissues and organisms is made possible.

Detailed explanation-3: -Cell biology (also cellular biology or cytology) is a branch of biology that studies the structure, function, and behavior of cells.

Detailed explanation-4: -DNA (deoxyribonucleic acid) is the cell’s genetic material, contained in chromosomes within the cell nucleus and mitochondria. Except for certain cells (for example, sperm and egg cells and red blood cells), the cell nucleus contains 23 pairs of chromosomes. A chromosome contains many genes.