Use the Following to Answer Questions

question 37

Multiple Choice

Use the following to answer questions
The diagram below illustrates the normal expression of three different groups of genes (A, B, and C) within four different whorls of a developing flower. Normally, whorl 1 produces sepals, whorl 2 produces petals, whorl 3 produces stamens, and whorl 4 produces carpels. Furthermore, expression of class A genes inhibits class C genes, and expression of class C inhibits class A.
-What kind of mutation would produce sepals in whorls 1 and 4 and petals in whorls 2 and 3?

• A) defective in A
• B) defective in B
• C) defective in C
• D) defective in A and B
• E) defective in B and C

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Definitions:

Acetabulum

The socket in the pelvic bone that receives the head of the femur, forming the hip joint.

Achondroplasia

A genetic disorder characterized by dwarfism due to an abnormality in the conversion of cartilage into bone, particularly in the long bones.

Arthralgia

Pain in a joint, often not accompanied by inflammation.

Lordosis

A curvature of the spine that results in an exaggerated inward curve, typically of the lower back.