08-20-2006, 04:23 PM
Which of the following is not true of HOX genes?
A. They exist in four major clusters on four different chromosomes in humans.
B. A mutation in one of them causes synpolydactyly.
C. They contain a DNA sequence that encodes a DNA-binding homeodomain.
D. These genes are found only in humans, apes, and monkeys.
E. They are important in formation of the anterior/posterior axis in the embryo
A. They exist in four major clusters on four different chromosomes in humans.
B. A mutation in one of them causes synpolydactyly.
C. They contain a DNA sequence that encodes a DNA-binding homeodomain.
D. These genes are found only in humans, apes, and monkeys.
E. They are important in formation of the anterior/posterior axis in the embryo
