Why do vertebrates have more individual Hox genes than most invertebrates, and what is the general
significance?
What will be an ideal response?
The entire Hox gene complex was duplicated in the vertebrate lineage. The additional copies of Hox
genes probably evolved to specify the development of uniquely vertebrate characteristics.
You might also like to view...
Which statement makes a correct comparison between the regulation of an operon and controlling the
motion of a car?
a. The removal of a repressor is like stepping on the gas pedal of a car. b. The removal of a repressor is like removing your foot from the brake pedal of a car. c. The removal of a repressor is like moving your foot from the brake pedal to the gas pedal of a car. d. The removal of a repressor is like moving your foot from the gas pedal to the brake pedal of a car. e. The removal of a repressor is like removing your left foot from the brake pedal of a car while your right foot remains on the gas pedal.
No nonliving entity exhibits of possesses
which of the following? a. energetic interactions. b. DNA. c. atoms. d. heat energy e. complexity
Knowing the atomic mass of an element allows inferences about which of the following?
A) the number of electrons in the element B) the number of protons in the element C) the number of protons plus neutrons in the element D) the number of protons plus electrons in the element
The ________ stain makes use of malachite green
A) negative B) flagellar C) endospore D) electron microscopy E) acid-fast