The first step of an action potential, when the membrane potential of a neuron shifts from negative to positive due to inward movement of sodium ions, is referred to as ________
Fill in the blank(s) with correct word
depolarization
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A patient is about to receive chemotherapy and the doctor is concerned with dispensing the correct dosage. Certain people cannot metabolize this type of chemotherapy because they have a SNP in one particular gene
Which of the following tests could be performed that would let the doctor know if her patient can handle this type of chemotherapy? A. RFLP analysis B. CNV C. genotyping microarray D. gel electrophoresis E. VNTR analysis
You are a doctor who examines a swollen and warm puncture wound on the hand of a patient. Next door, a vet examines the same puncture wound on the foot of a dog. Are you and the vet seeing the same immune responses?
A. Yes, because dogs have innate immune systems but not adaptive immune systems. B. Yes, because dogs have adaptive immune systems but not innate immune systems. C. No, because the immune response is unique to humans. D. Yes, because vertebrates have both adaptive immune systems and innate immune systems. E. No, because the foot of a dog is a completely different structure than the hand of a patient.
As the polypeptide is elongating in translation,
what is the ribosome doing?
a. removing incorrectly added amino acids. b. moving along the mRNA transcript bonding amino acids to each other. c. travelling back and forth between the nucleus and the growing polypeptide with information on which amino acids to add. d. removing the non-coding introns. e. doing more than one of these functions
How are fleas transmitted between hosts?
A) via direct transmission B) via an intermediate vector C) through multiple hosts D) via water