CBA 4 Review

Which statement explains why viruses are not considered alive?

• Attach to host cells

• The protein shell

• Viruses are much smaller than cells

• Viruses are NOT made of cells and CANNOT metabolize nutrients

Which form of viral reproduction causes the quick onset of symptoms?

• The lysogenic cycle

• The lytic cycle

• Antiviral drugs

• Vaccines

Which form of viral reproduction allows viruses to remain dormant inside cells until activated?

• The lysogenic cycle

• The lytic cycle

• Antiviral drugs

• Vaccines

How do vaccines protect your body from viruses?

• they attach to host cells

• helper T cells

• they cause your body to produce antibodies against the virus

• genetic material

DNA contains the code needed for our cells to make:

• Lipids

• sugar

• oxygen

• proteins

what is a gene?

• a whole strand of DNA

• a segment of DNA that has the code for specific traits

• one of the nitrogen bases

• an article of clothing made by Levi's

which organelle in our cell is responsible for making proteins?

• mitochondria

• cell wall

• DNA

• ribosome

what is true of all living things on earth?

• they ALL use the same genetic code

• nitrogen bases

• take genes out of species and put them into another

• to save resources because the protein is not needed

How many nucleotides make up a codon/anticodon? __

what does it mean if we say that a gene is being expressed?

• take genes out of a species and put them in another

• it is turned on and being used to make a protein

• 3 nucleotides

• the complete set of all the organisms DNA