Some bacterial transposons, known as Tn elements, are larger than insertion sequences (IS elements) and contain protein-coding genes that have human health significance. What might such a bacterial transposon contain?
A) dissociation element
B) proto-oncogene
C) drug resistance
D) pseudogene
E) oncogene
Answer: C
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The Aniridia gene in humans is involved in eye formation. Although eye development is very different in flies, this gene is highly conserved. What is the Drosophila homolog of Aniridia?
A) eyeless B) Pax-6 C) noeye D) ommatidia
The ion that increases its intracellular concentration in order to trigger the release of neurotransmitters is
A. HCO3- B. Ca2+ C. Cl- D. Mg2+ E. K+
You are looking at diagrams of cells in the process of division and are uncertain as to what process you are viewing (mitosis or meiosis). You determine that the cells you are looking at have 7 chromosomes. You can confidently assume that these cells are
in which phase, based on this odd chromosome number? A) metaphase II B) metaphase C) metaphase I D) All of the above are true.
You add 1000 molecules of radioactive pyruvic acid to eukaryotic cells. Assuming that all these molecules are used in the Krebs cycle and all reducing energy is converted to ATP, how many radioactive ARP molecules will be made?
What will be an ideal response?