Answers edited by Joëlle

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• How does the cell membrane change over time?
  
• Question #f633a
  
• How many moles of aluminum do #6.3*10^-24# aluminum atoms represent?
  
• What kind of bond holds the amino acids together in the protein that is formed?
  
• Of these choices: carotene, hemoglobin, melanin, what is the most responsible for the skin color of dark-skinned people? What provides a natural sunscreen?
  
• Why is gamma decay more dangerous than alpha decay or beta decay?
  
• What is the 3'UTR site of mRNA?
  
• An atom of aluminum has an atomic number of 13 and a mass number of 27. How many neutrons does it have?
  
• What happens at a DNA replication fork during replication?
  
• What are the different sizes and health hazards of the three nuclear particles/rays?
  
• What is a trait called when it is controlled by more than one gene?
  
• Question #5f9ca
  
• Why is RNA polymerase used in the DNA replication?
  
• How do HOX genes affect evolution?
  
• Question #f7bbd
  
• In cellular respiration, what is being oxidized and what is being reduced?
  
• What is a property that can be used to identify matter?
  
• Question #4cdbc
  
• Why are homeotic genes referred to as master switches?
  
• Question #d5c7a
  
• A doctor's order is 0.125g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How many milliliters of the suspension are required?
  
• Which isotopes of aluminum are radioactive?
  
• How do you balance #CaO + H_2O -> Ca(OH)_2#?
  
• What is the relationship between photosynthesis and cellular respiration?
  
• When blood is donated, is the donor's DNA transferred to the recipient?
  
• Exocrine glands classified as compound tubular have what kind of ducts?
  
• In gene therapy, a defective gene is replaced using a virus to insert a normal gene. What will make the treatment successful?
  
• Which protists act like fungi?
  
• Why is it unlikely that you would find garden slugs or land snails in a desert?
  
• What eventually happens to radioactive isotopes?
  
• What is a consequence of the fact that a person infected with HIV may have no symptoms for years?
  
• How are the different types of blood types formed? What does the Rh factor do?
  
• What does the formation of a barr body inactivate?
  
• What does PCR allow you to do with DNA?
  
• What causes rough endoplasmic reticulum to look "rough" under a microscope?
  
• What is needed by the body to free up energy stores in response to stress?
  
• How does the ability of a white blood cell to change its shape affect its function?How are the organelles of a single cell like organs of a multicellular organism?
  
• What are the three states of matter?
  
• How does the organization of genetic material differ in prokaryotic and eukaryotic organisms?
  
• What are the names of some proteins coded by mitochondrial DNA?
  
• How do you write the radioactive decay equation for the radioisotopes, Gold-198 and Radon-222?
  
• Why does the lack of ATP in muscle cells cause the muscles to become rigid rather than limp soon after death?
  
• The half-life of carbon-14 is 5730 years. What percentage of carbon-14 remains in a sample after 12 half lives?
  
• Why didn't Linnaeus create taxonomic groups for viruses?