Many drugs are produced by placing human genes into bacteria. The bacteria then transcribe and translate these gene into functional human proteins that can then be purified and given as drugs. The fact that this process works is consistent with which hypothesis?
A. Bacteria have evolved to mimic human cells.
B. Bacteria cannot divide unless they are inside a host cell.
C. Humans and bacteria share a common ancestor.
D. Bacteria need to make human proteins to live inside the human body.
E. Humans and bacteria use different genetic material.
Answer: C. Humans and bacteria share a common ancestor.
You might also like to view...
Microarrays, hybridization tests, and ribotyping are increasing in frequency in their use in clinical labs for diagnosis of infectious diseases and the microorganisms causing them. Why is this?
A. They are cheaper than biochemical tests. B. They have greater specificity for the organism because they employ specific antibody. C. The tests are more easily performed in a doctor's office or hospital, right there where the specimens are taken. D. Genomic testing has less errors compared to biochemical tests and serological tests.
Dispersion is
A. the ability to move. B. the rate of movement. C. the spatial distribution of reproduction. D. the spatial distribution of individuals. E. the timing of reproduction.
Which of the following adds RNA nucleotides,
one at a time, during transcription?
a. RNA polymerase b. DNA polymerase c. RNA nuclease d. transfer RNA e. ribosomal RNA
Which component of a nephron receives fluid from the loop of the nephron?
A. glomerular capsule B. collecting duct C. distal convoluted tubule D. proximal convoluted tubule