Related InterviewSolutions

• Human red blood cells (RBCs) cannot be grown in cultures because a. RBCs require a steady oxygen supply b. RBCs are extremely fragilec. RBCs are terminally differentiated cells d. RBCs are biconcave
• Which one of the following cannot form a bilayer by itself? a. Glycerophospholipids b. Cholesterol c. Phosphatidic acid d. Glycerolipids
• The poison dart frog, or poison arrow frog in the family Dendrobatidae carry Batrachotoxin, among other agents. The toxin irreversibly binds to voltage-gated sodium channels and keeps them open. Why does this paralyze and kill you? a. The ionic gradient gets lost and the nerve cells die b. Synapses remain active so muscles cannot relax c. The metabolic cost of pumping sodium ions exhausts the ATP reserves of cells d. All pain-conducting nerves become active simultaneously
• Consider the following statements. I. Some fairies are pixies II. All pixies are magicians III. No magicians are trollsBased on the above statements, which of the following is correct: a. Some trolls are pixies b. Some fairies are magicians c. All magicians are pixies d. All pixies are fairies 
• How many bacteria were there in the initial 1 ml sample based on the dilution series shown below? The labels below the tube show the amount of liquid before the transfer. Assume no cell death, and assume that all bacteria successfully form colonies when plated.a. 6.5 x 108 b. 6.5 x 109c. 6.5 x 1010 d. 6.5 x 1011
• Which one of the following quantities is invariant under Lorentz transformation? a. Charge density b. Charge c. Current d. Electric field 
• When you are writing a paper, which of the following actions does not require you to cite the source? a. Reusing a standard abbreviation from a published paper b. Reusing a sentence from a published paper c. Reusing a paragraph from the methods section of a published paper d. Reusing a paragraph from Wikipedia
• You have been asked to measure the wingspans of a set of birds of the same species. As your sample size (the number of wingspans you measure) increases, what will a graph of standard deviation vs. sample size look like? a. Increasing b. Decreasing c. Constant (flat) d. Fluctuating (sometimes increasing, sometimes decreasing)
• Ontario, a province in Canada, is nearly 6 times larger than the state of Karnataka, yet it houses fewer species of plants and animals than its Indian counterpart. This is most likely because:a. Karnataka has a higher human population b. Karnataka is closer to the equator c. Ontario is west of Karnataka d. Ontario gets more precipitation per year
• A particle of mass m undergoes harmonic oscillations with period T, about x = 0. Now a force F is applied to the particle, acting opposite in direction to its instantaneous velocity: F = - kv. What happens when the particle is released from rest from some x > 0:a. It undergoes a steady oscillation with a period larger than T b. It undergoes a decaying oscillation c. It no longer oscillates, it moves in one direction with decreasing speed d. It could oscillate or not, depending on parameter values