There is concern that transgenic genes have been found in unrelated crops. Could such genetic
transformation occur with traditional breeding programs? What will be an ideal response?
Yes, the movement of genes between species has been happening for a long time. Bacteria native to
the human gut seem to have human genes in their genome, and humans have a number of genes in our
genomes that were introduced by viruses. That being said, care should be taken in introducing genes
and transfer between organisms is known to occur.
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What rate comes closest to the maximum rate of carbon dioxide fixation you have measured in this activity? Remember that you took your sample after 30 seconds; you can assume that rate would remain constant over time to calculate ?l/min (microliters/60 seconds)
a. 16 microliters/min b. 66 microliters/min c. 33 microliters/min d. 130 microliters/min
Studying the partial-genome sequences that result from metagenomic analyses of extreme environments allows researchers to ________.
A. infer the metabolic characteristics of the proposed organisms by analyzing their putative proteins B. limit the phyla of archaea by sorting them according to their habitats C. finalize the organization of domain Archaea D. classify them in a specific phylum described in Bergey's Manual
List the stages in the eukaryotic cell cycle and identify the principal events characteristic of each stage. What will be an ideal response?
Studies using fissure water from gold-mining operations nearly 3 km deep indicate that the bacteria present use what for energy?
a. organic carbon b. sulfur c. iron d. H2