While Drosophila have the simplest single set of Hox genes on a single chromosome, higher vertebrates typically have four sets across four different chromosomes. How many wholesale duplications of the Hox complex must have occurred during vertebrate evolution?
A) 2
B) 1
C) 3
D) 4
Correct Answer:
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Q1: Which of the following biologists was quoted
Q2: The living unicellular group most closely related
Q3: Trichoplax is a very simple two-layered organism
Q4: Vertebrates, mollusks, and nematodes are tripoblasts. Which
Q5: What is ontogeny?
A) The evolutionary history of
Q6: During Darwin's visit to the Galapagos Islands
Q8: What is the Drosophila chordin-related gene?
A) Short
Q9: Humans have five digits on each hand
Q10: Which of the following refers to differences
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