Achondroplasia Is a Common Cause of Dwarfism in Humans

question 9

Multiple Choice

Achondroplasia is a common cause of dwarfism in humans. All individuals with achondroplasia are thought to be heterozygous at the locus that controls this trait. When two individuals with achondroplasia mate, the offspring occur in a ratio of 2 achondroplasia : 1 normal. What is the MOST likely explanation for these observations?

• A) Achondroplasia is incompletely dominant to the normal condition.
• B) Achondroplasia is codominant to the normal condition.
• C) The allele that causes achondroplasia is a dominant lethal allele.
• D) The allele that causes achondroplasia is a recessive lethal allele.
• E) The allele that causes achondroplasia is a late-onset lethal allele.

Comprehend the nature and significance of peptide bonds in protein structure.

Understand the major functions of lipids in the human body.

Recognize the impact of pH changes and temperature on bodily functions.

Grasp the basic concepts of ATP and energy transfer within cells.

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