Sail E0 Webinar

MCQs

Total Questions : 339 | Page 7 of 34 pages
Question 61. Plasnid are made up of
  1.    DNA
  2.    DNA and RNA
  3.    RNA and proteins
  4.    RNA
 Discuss Question
Answer: Option A. -> DNA
Answer: (a).DNA
Question 62. The capsid of bacteriophage is made up of
  1.    Lipids
  2.    Carbohydrates
  3.    Proteins
  4.    Starch
 Discuss Question
Answer: Option C. -> Proteins
Answer: (c).Proteins
Question 63. Proteins are digested into amino acid by enzyme
  1.    Amylase
  2.    Lipase
  3.    proteases
  4.    Fructose
 Discuss Question
Answer: Option C. -> proteases
Answer: (c).proteases
Question 64. Sarophyfic feeding on living
  1.    Decaying organic matter
  2.    living plants
  3.    Animals
  4.    Fumigi
 Discuss Question
Answer: Option A. -> Decaying organic matter
Answer: (a).Decaying organic matter
Question 65. The enzyme amylase digest the starch to
  1.    Lactose
  2.    Maltose
  3.    Glucose
  4.    Fructose
 Discuss Question
Answer: Option B. -> Maltose
Answer: (b).Maltose
Question 66. Which of the following is used in electron microscope?
  1.    electron beams
  2.    magnetic fields
  3.    light waves
  4.    electron beams and magnetic fields
 Discuss Question
Answer: Option D. -> electron beams and magnetic fields
Answer: (d).electron beams and magnetic fields
Question 67. Degree of scattering in transmission electron microscope is a function of __________
  1.    wavelength of electron beam used
  2.    number of atoms that lie in the electron path
  3.    number and mass of atoms that lie in the electron path
  4.    mass of atoms that lie in the electron path
 Discuss Question
Answer: Option C. -> number and mass of atoms that lie in the electron path
Answer: (c).number and mass of atoms that lie in the electron path
Question 68. Electron Microscope can give a magnification up to ___________
  1.    400,000X
  2.    100,000X
  3.    15000X
  4.    100X
 Discuss Question
Answer: Option A. -> 400,000X
Answer: (a).400,000X
Question 69. Which of the following are true for electron microscopy?
  1.    specimen should be thin and dry
  2.    image is obtained on a phosphorescent screen
  3.    electron beam must pass through evacuated chamber
  4.    specimen should be thin and dry, image is obtained on a phosphorescent screen and electron beam must pass through evacuated chamber
 Discuss Question
Answer: Option D. -> specimen should be thin and dry, image is obtained on a phosphorescent screen and electron beam must pass through evacuated chamber
Answer: (d).specimen should be thin and dry, image is obtained on a phosphorescent screen and electron beam must pass through evacuated chamber
Question 70. Negative Staining is used for examining _____________
  1.    virus particles
  2.    protein molecules
  3.    bacterial flagella
  4.    virus particles, protein molecules and bacterial flagella
 Discuss Question
Answer: Option D. -> virus particles, protein molecules and bacterial flagella
Answer: (d).virus particles, protein molecules and bacterial flagella

Latest Videos

Latest Test Papers