DNA Structure & Replication

The 5' end of DNA is marked by a(n)

• Phosphate Group
• Hydroxyl Group
• Purine
• Pyrimidine

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NGSS.HS-LS1-1

The two strands of DNA are held together by:

• Hydrogen Bonds
• Phosphodiester Bonds
• Glycolsyl Bonds
• Glycosidic Linkages

The concept that DNA is made of two strands running in opposite directions is called:

• Antiparallel
• Isomerism
• Enantiomerism
• S/R Chirality

DNA is a polymer made of:

• Nucleotides
• Ribosomes
• Purines
• Pyrimidines

The "Triple Helix Model" of DNA was proposed by:

• Linus Van Pelt
• Linus Pauling
• Rosalind Franklin
• Nikolai Koltsov

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NGSS.HS-LS1-1

The "Double Helix Model" of DNA was proposed by:

• Watson & Crick
• Meselson & Stahl
• Beadle & Tatum
• Gosling & Watkins

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NGSS.HS-LS1-1

X-Ray diffraction pictures of DNA that suggested a helical shape were taken by:

• Watson & Crick
• Meselson & Stahl
• Beadle & Tatum
• Gosling & Franklin

The person who discovered the material in the nucleus, called NUCLEIN, was:

• Meischer
• Koltsov
• Levene
• Chargaff

The experiment that proved that DNA was the molecule of heredity was performed by:

• Hershey & Chase
• Watson & Crick
• Meselson & Stahl
• Okazaki

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NGSS.HS-LS1-1

NGSS.HS-LS3-1

Who's work concluded that the %A=%T  and %G=%C

• Chargaff
• Meischer
• Levene
• Hammerling