EVERYDAY SCIENCE

Detailed explanation-1: -A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases.

Detailed explanation-2: -Gene is the basic structural and functional unit of heredity. It contains the information to express a particular character in an organism. In other words, genes are fragments of DNA which code for a protein.

Detailed explanation-3: -The unit of the chromosome is the gene. A gene is a DNA segment that carries information from parents to children and determines the heredity characters in the offspring.

Detailed explanation-4: -Listen to pronunciation. (NOO-klee-oh-tide) A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate group, and a sugar (deoxyribose in DNA; ribose in RNA).

Detailed explanation-5: -A cistron is defined as a section of genetic material (DNA or RNA) that scrambles for the foundation of an explicit chain made of the polypeptide; and organizational gene. And thus, it is called a functional unit of a gene.