Which of the following is not a difference between DNA and RNA?
What will be an ideal response?
DNA is a polymer and RNA is a monomer
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The abundance of cyanobacterial mats has greatly declined due to the evolution of
A) antimicrobial-producing fungi. B) bacteriophages. C) metazoan grazers. D) Proteobacteria.
In an experiment, you have created a microbial strain in which you have deleted a single gene; to evaluate the transcriptome and the proteome, you
A. run two-dimensional gels. B. perform DNA sequencing. C. run microarray analysis. D. run microarray analysis and two-dimensional gels.
Biologists believe that whooping cranes suffer from a high rate of developmental deformities of the spine and trachea
because of ____.
a. biological magnification of DDT b. exposure to hormone-mimicking pollutants from plastics c. a population bottleneck and loss of genetic variability d. conservation biologists saving chicks that would have died at hatching e. exposure to PCBs used as insulators in electronics
Repressor proteins
a. prevent binding of RNA polymerase to DNA. b. cause the DNA regions that contain the operator to twist or loop. c. inactivate operon genes when their products are not required. d. bind to sets of operators. e. do all of these.