DNA & DNA Replication Quiz25

The whole figure below shows the structure of a(an)_____________________. It contains the genetic code for life.

• DNA molecule.
• amino acid.
• RNA molecule.
• protein.

Which of the following is an example of the make-up of a nucleotide found in a DNA?

• ribose + phosphate group + thymine(base)
• ribose + phosphate group + uracil(base)
• deoxyribose + phosphate group + uracil(base)
• deoxyribose + phosphate group + cytosine(base)

DNA replication results in two DNA molecules,________________________________________.(semiconservative)

• each with two new strands.
• one with two new strands and the other with two original strands.
• each with one new strand and one original strand.
• each with two original strands.

During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases____________________________.

• TCGAAC.
• GATCCA.
• AGCTTG.
• GAUCCA.

Which scientists developed the correct double-helix model of DNA?

• Frederick Griffith
• Oswald Avery
• James Watson and Francis Crick
• Rosalind Franklin

Which scientist discovered that a factor in heat-killed, disease-causing bacteria can "transform" harmless bacteria into ones that can cause disease?

• Frederick Griffith
• Oswald Avery
• James Watson and Francis Crick
• Rosalind Franklin

Which scientist studied the DNA molecule using a technique called X-ray diffraction?

• Frederick Griffith
• Oswald Avery
• James Watson and Francis Crick
• Rosalind Franklin

The letter X on the figure below is is pointing the the monomer that makes up the DNA molecules. It is call a (an)_________________________.

• nucleotide
• chromosome
• purines
• amino acid

What are the four bases that make the the middle section of DNA?

• Adenine, Thymine, Cytosine, and Uracil
• Adenine, Thymine, Cytosine, and Guanine
• Adenine, Ribose, Cytosine, and Uracil
• Adenine, Thymine, Cytosine, and Deoxyribose

In DNA the base pairing principle what binds with Adenine?

• Guanine
• Thymine
• Cytosine
• Uracil