true or false: it is possible to predict the sequence of one strand of DNA if we know the sequence of the complementary strand.
What will be an ideal response?
true
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What is bradycardia?
What will be an ideal response?
For fun, you have used new molecular biology techniques to insert protein channels into the cell membrane that allow only Na+ and Cl- to pass. Predict which ion(s) will move. Tell what direction it (they) will move and what force(s) is/are acting on it (them).
We have finally discovered life on Venus. NASA scientists are investigating a newly discovered life form: a single-celled organism found in the swampy canals. You have been contracted by NASA to perform an electrophysiology study. Using intracellular electrodes to measure the electrical charge inside the cell, you find it has a resting membrane potential of -45 mV when the outside fluid is arbitrarily set to 0 mV. Additionally, you have determined ion concentrations and listed them below.
The ability to concentrate the urine depends on:
a. Active transport of sodium by the proximal tubule b. Creation of a medullary osmotic gradient by the loop of Henle c. The presence of ADH d. Both b and c are correct
In contrast to secondary spinal cord injury, primary spinal cord injury occurs:
A) from progressive swelling. B) at the moment of impact. C) from penetrating mechanisms. D) within 24 hours of the injury.