What Are Chromosomes? Definition, Function, and Structure
Chromosome Chromosomes are thread-like structures found inside the nucleus of every cell. These structures play a crucial role in heredity , which is why they are often called the carriers of heredity . The word “Chromosome” comes from two Greek words: Chroma – meaning color Soma – meaning body Chromosomes are usually present in pairs , and their number varies among different organisms : Humans have 23 pairs (46 chromosomes) Elephants have 28 pairs Cats have 19 pairs These chromosomes carry genetic material in the form of DNA , which is passed on from one generation to the next. Structure Of Chromosomes - In 1888 W. Waldeyer called this thread like structure a Chromosome as they could be stained with the help of stains like acetocarmine , acetoorcein etc . The structure of chromosome are c...