How might a single base insertion into the second codon of the coding sequence of a gene affect the amino acid sequence of a protein encoded by the gene?
A) A single amino acid could change.
B) The amino acid sequence would be altered.
C) The mutation may have no effect on amino acid sequence.
D) A single extra amino acid would be present in the protein.
E) All of the above are possible outcomes.
B
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In the 1990s, the ______________ paved the way to successful whole-genome shotgun sequencing
A. availability of physical genome maps B. integration of cloud computing C. improvement in computer hardware and software D. discovery of reverse transcriptase E. utilization of ribozymes
The largest reservoir of carbon is ____
a. consumers b. nutrients in soil c. producers d. sedimentary rock e. water
Please choose the one BEST response for each.
A. neuroglia B. detects a stimulus C. both receives and sends signals from other neurons D. neurotransmitter molecule E. controls muscles and glands F. sodium-potassium pump G. gray matter H. voltage difference across a cell membrane I. voltage difference across a cell membrane that is not receiving stimulation J. dendrite K. brief reversal of the voltage difference across a cell membrane L. a response intensifies the conditions that caused its occurrence M. neuron membrane potential at which gated sodium channels open N. electroencephalography O. positron-emission tomography
Patients with indwelling catheters (long-term tubes inserted into body orifices for drainage, such as through the urethra and into the urinary bladder) are susceptible to infections because
A) injected solutions are contaminated. B) their immune systems are weakened. C) infections can be transmitted from other people. D) biofilms develop on catheters. E) bacteria cause infections.