In order to make Monday-morning staff meetings bearable, you and your colleagues take turns picking a theme for breakfast, and everyone who wants to eat is required to bring a dish that fits the chosen theme. This week, it’s your turn to choose, and you decide that it would be nice to have interesting jams and jellies for the inevitable bagels, so you pick “fruit spreads.” On Monday morning, three of your more sarcastic colleagues show up with bottles of ketchup, mustard, and pickle relish. Which of these technically qualifies as fruit spreads?
a. all three
b. none
c. ketchup and relish
d. just ketchup
c. ketchup and relish
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A volcanic eruption carves the island into two populations (A1 and A2, 50,000 individuals each). The rodents cannot cross the lava even when it has cooled
Immediately after the eruption you take 100 individuals from each of populations A1 and A2, and sequence the same 100 base-pair gene region in the mitochondrial DNA (mtDNA) of each individual. You are shown a DNA sequence chosen at random from the total pool of 200 sequences; can you tell which population, A1 or A2, it comes from? A. yes B. no
In vertebrates, waste elimination and the regulation of water and electrolyte balance are managed by a ____ system with paired organs called kidneys
Fill in the blank with the appropriate word.
The ____ digestive structures in humans secrete amylase
a. liver and gallbladder b. liver and pancreas c. pancreas and gallbladder d. pancreas and salivary glands e. pancreas, liver, and salivary glands
Which nucleotide triplet specifies tryptophan?
a. UAA b. UAG c. UGG d. UGA