A few genes are responsible for melanin pigmentation in human skin. Each gene has one allele that codes for melanin production and one allele that does not. Which of the following are true? Select all that apply. O Some alleles contribute to the phenotype, and others do not. O Only one of the genes has an effect on the phenotype. O The combination of alleles determines how pigmented the skin will be. O Each allele only contributes a small amount to the phenotype.

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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.