Protein spots eluted from a two-dimensional gel analysis can be identified and correlated to specific genes that code for them using ________.

A. Sanger sequencing and computer analysis
B. gas chromatography
C. mass spectrometry
D. None of the choices are correct.


Answer: C

Biology & Microbiology

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A student observes a wormlike organism crawling about on dead organic matter. Later, the organism sheds its outer covering. One possibility is that the organism is a larval insect (like a maggot)

However, it might be a member of the phylum ________, and one way to distinguish between the two possibilities is by looking for the presence or absence of ________. A) Platyhelminthes; a cuticle of chitin B) Nematoda; an alimentary canal C) Annelida; a body cavity D) Nematoda; a circulatory system E) Annelida; muscle in the body wall

Biology & Microbiology

Diabetes mellitus results from a disorder of glucose uptake by systemic cells and can result in a number of symptoms including high levels of blood glucose and the presence of glucose in the urine . Which of the following is a reasonable explanation for the presence of glucose in the urine?

A. The reabsorption capacity of the kidney for glucose is exceeded. B. A lack of sodium in the filtrate blocks the function of the Na+/glucose symport protein. C. High levels of glucose interfere with ADH function. D. The high levels of glucose induce a "dehydrated" state that promotes production of a large amount of dilute urine. E. None of the choices given are a logical explanation for this observation.

Biology & Microbiology

Which of the following is an unencapsulated dendrite of a sensory neuron?

a. Ruffini endings b. Pacinian corpuscles c. free nerve endings d. hair receptors

Biology & Microbiology

Water moves via osmosis from an area with a lower solute concentration to an area with a higher solute concentration

Indicate whether the statement is true or false

Biology & Microbiology