Botanically, the fibers in your cotton t-shirt are _____
a. angiosperm seeds d. fibers from pine needles
b. gymnosperm seeds e. cellulose-rich hairs
c. lignin fibers
E
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A gene library from a particular human's retinal cell would be a collection of _____
A) DNAs cut by a restriction enzyme B) plasmids cut by a restriction enzyme C) different DNA fragments ligated into different plasmids D) genes that have been sequenced from a particular organism E) PCR-amplified DNAs
Which of the following statements are true about resting membrane potential? Select all correct choices
A. It results from the sodium-potassium pump moving more Na+ ions out of the cell compared to the number of K+ ions moved into the cell. B. It results from K+ ions moving out of the cell through passive diffusion. C. It results from voltage-gated sodium channels remaining open for long periods of time.
Zebra mussels are great eating and intentionally grown in Texas lakes.
True or false
The addition of phosphate to a chemical compound is called
a) glycolysis. b) oxidation. c) reduction. d) phosphorylation.