BIOL 150 Exam 1 Review

What is the Central Dogma of life?

• DNA -> Protein -> RNA

• Protein -> RNA -> DNA

• DNA -> RNA -> Protein

• RNA -> Protein -> DNA

Which of the following is NOT one of the 12 Principles of Biology?

• Cells are the simplest unit of life

• Biology is qualitative

• Living organisms maintain homeostasis

• Biologists use models and simlations to test predictions

Which of the following is a correct description of horizontal gene transfer?

• Transfer of genetic material from one organism to another organism that is not its offspring

• More common than vertical gene transfer

• A slow progression of changes in a lineage

• New species evolve from pre-existing species by the accumulation of mutations

What is a hypothesis?

• A proven scientific fact

• A testable explanation or prediction based on observations

• A law in science that has been confirmed by experiments

• A theory that has been accepted by all scientists

What are the three domains of life?

• Animals, Plants, Fungi

• Prokaryotes, Eukaryotes, Viruses

• Kingdom, Phylum, Class

• Bacteria, Archaea, Eukarya

Which of the following is the correct charge pairings for electrons, protons, and neutrons?

• Electron: +

  Proton: Neutral

  Neutron: -

• Electron: -

  Proton: Neutral

  Neutron: +

• Electron: -

  Proton: +

  Neutron: Neutral

What is an ion?

• An element that differs in the number of neutrons it has

• A type of chemical bond that holds atoms together

• A neutral atom with an equal number of protons and electrons

• An atom that has gained or lost electrons, giving it a charge

Which section of the periodic table correlates to the highest electronegativity?

• Upper left corner

• Upper right corner

• Lower left corner

• Lower right corner

What are the three elements that Hydrogen must be attached to in order to engage in Hydrogen boding?

• C, P, O

• C, H, F

• F, N, O

• N, C, O

Which of the following is NOT a unique characteristic of water?

• Low Specific Heat

• Solvent; medium for biochemical reactions

• Resists compression

• Cohesion/Adhesion