Question

Which of the following is an example of a variation in Mendelian inheritance patterns observed in humans?

a. Autosomal dominant inheritance, where the presence of a single copy of a mutant allele leads to the trait.
b. Incomplete dominance, where the heterozygous genotype results in an intermediate phenotype.
c. X-linked recessive inheritance, where the trait is carried on the Y chromosome.
d. Mendelian inheritance patterns do not exhibit variations in humans.

Answer 1

Incomplete dominance is an example of a variation in Mendelian inheritance patterns observed in humans. It occurs when the offspring express a phenotype that is intermediate between the traits of the parents.

Step-by-step explanation:

In humans, incomplete dominance is an example of a variation in Mendelian inheritance patterns. In incomplete dominance, the offspring express a phenotype that is intermediate between the homozygous dominant and recessive traits of the parents.

A example of this can be seen in hair texture, where one parent passes a curly hair allele and the other parent passes a straight hair allele, resulting in wavy hair in the offspring.