individuals in a given family have attached earlobes. Unattached earlobes are dominant over attached earlobes. Which of the following statements is true of the pedigree?  a Individuals 8 and 9 are heterozygous for the trait. b Individuals 1, 2, 3, and 4 have attached earlobes. c Individuals 6, 7, and 10 are male. d Individuals 11 and 12 are identical twins

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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.