Q.1
Mode of DNA replication is
  • Conservative and bidirectional
  • Semiconservative and unidirectional
  • Semiconservative and bidirectional
  • Conservative and unidirectional
Q.2
What is a prokaryotic organism?
  • An organism without a nucleus or membrane bound organelles
  • An organism with a nucleus and membrane bound organelles.
  • An organism with a nucleus but no membrane bound organelles
  • An organism with membrane bound organelles but no nucleus
Q.3
What is a mutation?
  • change the chromosome structure
  • Anything in the environment that can cause a mutation
  • A change in the sequence of bases in DNA or RNA
  • All of above
Q.4
What is transcription?
  • A molecule that contains the genetic code for organisms.
  • The RNA → Protein part of the central dogma
  • The DNA → RNA part of the central dogma of molecular biology
  • The process in which cells make proteins
Q.5
What is translation?
  • The RNA → Protein part of the central dogma
  • The DNA → RNA part of the central dogma of molecular biology
  • The process in which cells make proteins
  • A molecule that contains the genetic code of organisms.
Q.6
What is RNA?
  • A nucleic acid that processes all steps of protein synthesis in all living cells.
  • A molecule that contains the genetic code of organisms.
  • The process in which cells make proteins.
  • A gene that is damaged or changed in a way to alter the genetic message carried by that gene.
Q.7
What is a product of photosynthesis?
  • Glucose
  • Sun Light
  • Water
  • Carbon Dioxide
Q.8
What is the chemical formula for photosynthesis?
  • C6H12O6 + 6H2O --> 6CO2 + 6O2 + Sun Light
  • C6H12O6 + H2O --> CO2 + O2 +ATP
  • 6CO2 + 6O2 + Sun Light --> C6H12O6 + 6H2O
  • 6CO2 + 6H2O + Sun Light --> C6H12O6 + 6O2
Q.9
What is the energy source for photosynthesis?
  • Solar Energy
  • Glucose
  • ATP
  • All of above
Q.10
What is a eukaryotic organism?
  • An organism without a nucleus or membrane bound organelles
  • An organism with a nucleus and membrane bound organelles.
  • An organism with a nucleus but no membrane bound organelles
  • An organism with membrane bound organelles but no nucleus
Q.11
Which of the following processes does not occur in prokaryotes?
  • Transcription
  • Splicing
  • Translation
  • Replication
Q.12
Which enzyme is used in the unwinding of DNA?
  • Ligase
  • Topoisomerase
  • Helicase
  • Exonuclease
Q.13
What are the products of cellular respiration?
  • oxygen and water
  • carbon dioxide and water
  • oxygen and sugar
  • carbon dioxide and sugar
Q.14
What is a product of cellular respiration?
  • Glucose
  • Oxygen
  • Sun Light
  • Carbon Dioxide
Q.15
MRNA is
  • used as a template to make protein
  • part of a ribosme
  • a small molecule used by the ribosome and is not made into protein
  • all of the above
Q.16
What does DNA polymerase do?
  • connects sugars and phosphates with weak hydrogen bonds
  • connects sugars and phosphates with strong covalent bonds
  • connects bases with strong hydrogen bonds
  • connects bases with strong covalent bonds
Q.17
How many RNA polymerases are present in a bacterial system?
  • 4
  • 2
  • 1
  • 3
Q.18
The reactants of photosynthesis are
  • sugar and water.
  • sugar and oxygen.
  • carbon dioxide and water.
  • carbon dioxide and oxygen.
Q.19
What type of respiration requires oxygen?
  • Aerobic
  • Anaerobic
Q.20
What is the purpose of cellular respiration?
  • to break down food
  • to create energy in the body
  • to release energy from food
  • there is none; it's a waste of time
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