Which of the following statements is predicted if a population of fruit flies were fed a chemical that blocked the function of the SXL protein?
A) The progeny in the next generation would be approximately 50% male and 50% female.
B) The mRNA produced from the doublesex (dsx) gene would not be spliced.
C) The progeny in the next generation would be predominantly female.
D) The progeny in the next generation would be predominantly male.
E) The transformer (tra) gene would be maximally expressed.
Answer: D
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A. no transcription B. postive regulation C. constitutively active D. low level of expression
Who proposed that swamps might harbor tiny, disease-causing animals too small to see?
A. Thucydides B. Marcus Teretius Varro C. Hippocrates D. Louis Pasteur
Nuclear membrane reappears during
A. Metaphase B. Prophase C. Anaphase D. Interphase E. Telophase
Experimental evidence supporting the chemiosmotic hypothesis was gathered by using artificial vesicles containing a protein that can pump protons in one direction across the vesicle membrane to create a proton gradient
Which protein was used to generate the gradient in a highly controlled manner? (a) cytochrome c oxidase (b) NADH dehydrogenase (c) cytochrome c (d) bacteriorhodopsin