DNA & DNA Replication Quiz25

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

The backbone of a DNA molecule is made of a_________________________.

• base and phosphate
• phosphate and sugar
• base and sugar
• ribose and base

A segment of DNA on a chromosome that codes for a specific trait is a__________________________.

• Promoter
• Gene
• Intron
• Codon

Enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule is called what?

• DNA polymerase
• RNA polymerase
• Ribosomal RNA (rRNA)
• Transfer RNA (tRNA)

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)

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

In DNA the base pairing principle what binds with Adenine?

• Guanine
• Thymine
• Cytosine
• Uracil

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

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

What is the process call where 1 DNA molecule separates into two strands, and then produces two new complementary strands following the rules of base pairing. The end product is 2 DNA molecules. This process happens in Interphase (S) of the cell cycle.

• Transcription
• Translation
• Translocation
• DNA Replication

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

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