Which would be the best method for determining which genes are being transcribed in a particular cell type?
A. electron microscopy
B. RNA sequencing (RNA seq)
C. X-ray crystallography
D. DNA sequencing
E. NMR spectroscopy
Ans: B. RNA sequencing (RNA seq)
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Why are most infants with phenylketonuria usually healthy at birth?
a. The defect causing the condition has usually been repaired by that time. b. The mother breaks down phenylalanine for both herself and her fetus. c. The infant can produce sufficient quantities of the enzymes needed by birth. d. Phenylalanine can be completely excreted in infants. e. Phenylalanine is completely metabolized in infants
Which of the following does NOT describe members of the Kingdom Fungi?
a. absorb nutrients produced by other organisms b. possess cell walls c. not photosynthetic d. cells lack a nucleus e. yeasts and mushrooms
Carlotta developed indigestion and pain under her navel over the weekend. As the workweek progressed, the pain worsened and moved to a point in the lower right abdomen, and she started to vomit and experience nausea and fever. You suspect that she is
suffering from ________. A) colorectal cancer B) heartburn C) peptic ulcer D) appendicitis
What is the role of transport proteins within the plasma membrane?
A) Transport proteins prevent the passage of amino acids through the membrane. B) Transport proteins maintain membrane fluidity. C) Transport proteins allow movement of ions and polar molecules through the plasma membrane. D) Transport proteins interact with the cytoskeleton to stabilize various parts of the cell. E) Transport proteins identify the cell.