In fruit flies, red eye color (R) is dominant over brown eye color (r). Two red-eyed fruit flies were mated and they  produced the following offspring: 73 red-eyed flies; 27 brown-eyed flies. In the offspring, what is the  approximate ratio of red-eyed to brown-eyed fruit flies?

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.