Biology 1 Ch. 12 Review

Which bacteria killed the mice in Griffith's transformation experiment?

• live, harmless bacteria and heat-killed harmful bacteria

• live harmless and heat-killed harmless bacteria

• live harmful and heat-killed harmless bacteria

• live harmless and like harmful bacteria

Griffith called the process he observed transformation because

• the mouse had been transformed

• the harmful bacteria had been transformed

• the harmless bacteria had been transformed

• the experiment had been transformed

What did Avery conclude caused transformation?

• DNA

• RNA

• Carbohydrates

• Lipids

What is inside a bacteriophage?

• protein

• nucleic acid

• lipid

• carbohydrate

What do bacteriophages infect?

• mice

• humans

• viruses

• bacteria

Why did Hershey and Chase label the viral DNA with radioactive phosphorous and not radioactive sulfur?

• DNA contains phosphorous and no sulfur

• Proteins contain phosphorous and no sulfur

• DNA contains sulfur and little phosphorous

• Proteins acids contain sulfur and little phosphorous

What stores information in a cell?

• proteins

• carbohydrates

• lipids

• DNA

What happens when a piece of DNA is missing?

• genetic information is stored

• genetic information is copied

• genetic information is lost

• genetic information is transmitted

Which of the following is a nucleotide found in DNA?

• adenine+phosphate group+thymine

• cytosine+phosphate group+ guanine

• deoxyribose+ phosphate group+polymerase

• deoxyribose+phosphate group+cytosine

Rosalind Franklin contributed to the understanding of DNA by

• producing images of DNA molecules using X-ray

• figuring out the DNA strands from a double helix

• conducting experiments that showed which nucleotides are complementary

• finding that DNA was nucleic acid made up of along chain individual nucleotides