Present an overview of bacterial gene regulation in terms of growth efficiency
What will be an ideal response?
Genetic systems have evolved that allow for "in-house" production of growth substances when not supplied in the environment or when in full supply. When needed substances are in full supply, such genetic systems are repressed.
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Mitochondrial DNA is/are
A) similar to nuclear DNA sequences. B) used to trace dispersal of modern humans. C) information storage for enzymes associated with photorespiration. D) associated with paternal inheritance patterns. E) all of the above
In Drosophila melanogaster the allele for red eyes is dominant over the allele for purple eyes, and the
allele for a gray body is dominant over the allele for a black body. A testcross was done to check for genetic linkage between the genes for these traits, with the following results for the offspring:478 flies with red eyes and a black body 27 flies with red eyes and a gray body 462 flies with purple eyes and a gray body 33 flies with purple eyes and a black body Which of the choices below best represents the map distance between the genes for these two traits?
a. 50.0 map units b. 30.0 map units c. 47.0 map units d. 27.0 map units e. 6.0 map units
Obese people have a greater risk of four of the following. Which one is the exception?
a. type 1 diabetes b. colon cancer c. high blood pressure d. breast cancer e. heart disease
According to the figure, which species is considered a pioneer species?
A) Ulva spp. B) Gigartina canaliculata C) Gigartina coulteri D) Gigartina leptorhynchos