Why do vertebrates have more individual Hox genes than most invertebrates, and what is the general significance?
What will be an ideal response?
ANSWER: 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.
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Cancer is often the results mutations that involve ________.
A. Genes in the mitotic spindle B. Proto-oncogenes mutating and becoming oncogenes C. Oncogenes mutating and becoming proto-oncogenes D. Both proto-oncogenes and oncogenes mutating
Describe the hypothesis that James Neel proposed to describe the inheritance pattern of SCD. What experimental methods did he use to prove his hypothesis?
What will be an ideal response?
Which statement is the most likely description of the common ancestor that exists between fungi and animals?
A. The ancestor was a multicellular organism that lived in some type of aquatic environment. It was most likely a flagellated protist. B. The ancestor was a flagellated organism that lived in some type of aquatic environment. It was most likely a multicellular protist. C. The ancestor was a flagellated organism that lived on the terrestrial environment. It was most likely a unicellular protist. D. The ancestor was a flagellated organism that lived in some type of aquatic environment. It was most likely a unicellular protist.
Bases have a high ____ concentration
Fill in the blank(s) with the appropriate word(s).