Describe three genetic mechanisms whereby proto-oncogenes can become overexpressed
What will be an ideal response?
They may acquire a new promoter, upstream regulatory signals, or additional copies (amplification).
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A viral lytic cycle is characterized by:
a. rapid infection and emergence. b. rapid infection, replication of nucleic acids and proteins, assembly of virions and release by rupture. c. a virus remaining in the host cell then being released. d. a viral nucleic acid being inserted into the host genome and possibly residing through multiple cell divisions prior to lytic.
Agarose is considered a polysaccharide because:
a. It is comprised of amino acid subunits. b. It is comprised of two simple sugars. c. It is comprised of many simple sugars. d. None of the above.
Researchers found three genes on chromosome 22 in chimpanzees that, when compared to our human genes, have given us insight into our evolution. What were those three genes?
A. genes for speech development, hearing, and smell B. genes for chest size, cranial size, and leg length C. genes for speech development, opposable thumbs, and leg length D. genes for taste, opposable thumbs, and bipedalism E. genes for food preference, bipedalism, and cranial size
Evidence suggests that hunger is greatly influenced by the current _________-_________ value of food.
What will be an ideal response?