A DNA site called a ________ is the binding location for a transcriptional repressor.
Fill in the blank(s) with the appropriate word(s).
silencer
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Lipids are important to biological systems because
A) they are solid at body temperature so they stabilize membranes. B) some lipid types are potentially large sources of energy to perform cellular work. C) most help to buffer aqueous solutions in the body. D) all lipids are very soluble in water. E) they are able to store and transmit genetic information.
One ecological impact of _____________ energy is its potential to negatively affect populations of migrating birds.
A. Solar B. Wind C. Geothermal D. Wave E. Biomass
Supertasters for the chemical PTC are ____ for the trait
a. homozygous dominant b. heterozygous c. homozygous recessive d. either homozygous dominant or homozygous recessive e. either homozygous dominant or heterozygous
Which statement is TRUE?
a. The laws of thermodynamics do not apply to living organisms. b. Producers in ecosystems have the highest concentrations of energy. c. The energy available to do cellular work will exist forever. d. The amount of energy available to consumers is more than that available to producers. e. When plants trap energy, they convert it into light.