LIFE SCIENCE

Detailed explanation-1: -The way in which traits are passed from one generation to the next-and sometimes skip generations-was first explained by Gregor Mendel. By experimenting with pea plant breeding, Mendel developed three principles of inheritance that described the transmission of genetic traits, before anyone knew genes existed.

Detailed explanation-2: -Mendel chose to experiment with peas because they possessed four important qualities: Peas had been shown to be true-breeding (all offspring will have the same characteristic generation after generation). Peas exhibit a variety of contrasting traits (purple vs. white flowers; round vs.

Detailed explanation-3: -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.