56. In gel electrophoresis, DNA is made visible with5o.Use the following information to answer the next question.autoradiographic blue.a.Na - K pump situated in the neural membraneb.RFLP dye.C.agarose.d.polyacrylamide gel.OutsideInside----K* diffusione.ethidium bromide.Nacarier57.Gene therapy alters a patient's genome byNa* diffusion-adding bacteria to the genome.excising nucleotides.adding a corrected gene.engineering transgenic tissue.a.b.c.Which of the following correctly describes the ion flow into or out of aneural fibre during repolarization?d.e.bioremediation.K* flow outK* flow ina.b.58.Use the following information to answer the next question.Na' flow outNa' flow inc.d.Neuronnone of thesee.Use the diagram given below to answer the next question.61.Human BrainMyelinated neurons conduct impulses faster than unmyelinatedneurons because in myelinated fibers, sodium gates open only adendrite labeled 1dendrite labeled 4a.2-b.node of Ranvier labeled 3c.d.node of Ranvier labeled 4e.cell bodv labeled 259.Use the following information to answer the next question.Action PotentlalIn the above diagram, the part of the brain that serves as a linkbetween the nervous system and the endocrine system is numbered40 mv-20 mv-a.1Omv-b.2C.2-20 mv-3d.4thresholdovershoot-40 mv-hyperpolarization)e.3 and 4------------60 mv--POmy trestingresting potentiaP52.The part of the brain that controls body temperature, hunger and thirstis theTime (ms)hypothalamusmedulla oblongatacerebruma.b.Which of the following describes the ion flow into or out of the nervefibre at the position marked 1 on the graph?C.d.cerebellume.е.ponsK* are flowing outb.a.K* are flowing inNa' are flowing inNa' are flowing outK* and Na' are flowing in oDDosite directionsc.53.Which of the following actions is NOT an example of a reflex action?d.e.Catching a footballa.b.Withdrawal of the hand upon touching a hot objectC.Closing the eyelids when an insect comes towards theeyesSalivating at the sight of foodJerking the knee when the tendon below the knee istappedd.e.Membrane potentlal

Introduction The technique of gel electrophoresis is used to separate DNA fragments based on their…

In gel electrophoresis, DNA is made visible with Use the following information to answer the next question. 56. 5o. autoradiographic blue. a. Na - K pump situated in the neural membrane b. RFLP dye. C. agarose. Outside Inside d. polyacrylamide gel. ----K* diffusion e. ethidium bromide. Na carrier 57. Gene therapy alters a patient's genome by Na* diffusion - adding bacteria to the genome. excising nucleotides. a. b. adding a corrected gene. engineering transgenic tissue. C. Which of the following correctly describes the ion flow into or out of a neural fibre during repolarization? d. е. bioremediation. a. K* flow out b. K* flow in 58. Use the following information to answer the next question. c. Na* flow out d. Na' flow in Neuron e. none of these Use the diagram given below to answer the next question. 61. Human Brain Myelinated neurons conduct impulses faster than unmyelinated neurons because in myelinated fibers, sodium gates open only a dendrite labeled 1 dendrite labeled 4 a. 2- b. node of Ranvier labeled 3 node of Ranvier labeled 4 cell bodv labeled 2 c. d. e. 59. Use the following information to answer the next question. Action Potentlal In the above diagram, the part of the brain that serves as a link between the nervous system and the endocrine system is numbered 40 mv- 20 mv- a. 1 Omv- b. 2 C. 2 -20 mv- 3 d. threshold 4 overshoot -40 mv- e. 3 and 4 (hyperpolarization) ----------- -60 mV- -B0 my resting potentiaP t resting 52. The part of the brain that controls body temperature, hunger and thirst is the Time (ms) hypothalamus medulla oblongata a. b. Which of the following describes the ion flow into or out of the nerve fibre at the position marked 1 on the graph? C. cerebrum d. cerebellum e. е. Dons K* are flowing out K* are flowing in a. b. Na' are flowing in Na' are flowing out K* and Na' are flowing in oDDosite directions c. 53. Which of the following actions is NOT an example of a reflex action? d. e. Catching a football a. b. Withdrawal of the hand upon touching a hot object C. Closing the eyelids when an insect comes towards the eyes Salivating at the sight of food Jerking the knee when the tendon below the knee is tapped d. e. Membrane potentlal