Since Mendel's Time, Types of Inheritance That Don't Follow Mendel's

question 23

Multiple Choice

Since Mendel's time, types of inheritance that don't follow Mendel's rules have been discovered.Which of the following situations is NOT an exception to Mendel's rules?

• A) A phenotype in the offspring is intermediate between the two parental phenotypes.
• B) Phenotypes of the offspring show range of phenotypes rather that two distinct phenotypes.
• C) When doing a dihybrid cross between two heterozygous F1 offspring, the ratio obtained is statistically different from the Mendelian ratio.
• D) When an individual with a heterozygous phenotype for a trait is crossed with an individual with a homozygous recessive phenotype, the ratio of phenotypes of the offspring is 1:1.
• E) Two or more gene pairs are involved in producing the phenotypes of a given trait.

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Definitions:

Larynx

Also known as the voice box, it is the part of the respiratory tract involved in sound production, breathing, and protecting the trachea against food aspiration.

Nasopharynx

The upper part of the pharynx, connecting the nasal cavity above the soft palate to the oropharynx and laryngopharynx.

Tonsil

Small masses of lymphatic tissue located at the back of the throat that help in fighting off infections.

Pharyngeal

Relating to the pharynx, the part of the throat behind the mouth and nasal cavity.