Natural selection quickly eliminates harmful alleles from the population
Indicate whether the statement is true or false.
ANS: F, may retain (especially if recessive)
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A culture technique that encourages the growth of specific microbes while inhibiting the growth of others is a(n) ________ culture.
Fill in the blank(s) with the appropriate word(s).
The protein SOS is a guanine nucleotide exchange factor for Ras. SOS helps facilitate the exchange of GDP for GTP. What would be the effect of a mutation that inhibits the interaction between SOS and Ras?
A. GTP would remain bound to Ras, thereby keeping Ras constitutively active. B. GDP would remain bound to Ras, thereby preventing Ras activation. C. Ras would be more likely to hydrolyze GTP to GDP. D. There would be no effect.
According to the endosymbiosis hypothesis ________.
A. the mitochondrion evolved from the same endosymbiont as the hydrogenosome B. the first endosymbiont was a fermentative organism C. the first endosymbiotic event involved an anaerobic bacterium D. All of the choices are correct.
Which is a cestode
What will be an ideal response?