Molecular Biology - Nucleic Acids

Uracil is a:

• Purine
• Pyrimidine

DNA fragments separate during electrophoresis because of

• DNA's negative charge
• DNA's positive charge
• DNA has no charge
• DNA's polarity

Which of the following is true about models:

• They all have limitations
• All models are of observable phenomenon
• Models must have inputs and outputs
• Models can't be used to make predictions

Watson and Crick used Chargaff's rules to figure out:

• The distance between nucleotides
• The number of hydrogen bonds in a nucleotide
• That the sugar and phosphate backbone is on the outside
• Which bases were complementary to each other

Restriction Enzymes were first:

• Genetically engineered in a lab
• Isolated from viruses
• Isolated from bacteria
• Discovered in the mitochondria

The following picture is showing a:

• Nucleotide
• Nucleic Acid
• Nucleiod
• Nucleolus

Which of the following children is the step child of the father?

• Child 1
• Child 2
• Child 3
• None of them

What would you label the end of the nucleic acid marked X?

• 5'
• 4'
• 3'
• 2'

The following represents:

• Cytosine and Thymine
• Adenine and Guanine
• Cytosine and Guanine
• Uracil and Thymine

Hershey and Chase were able to determine Nucleic Acids were the genetic material by:

• Extracting it from infected bacterial cells
• Observing the bacteriophage injecting DNA into the bacteria
• Deducing from X-Ray Crystallography DNA in the bacteria
• Identifying the radioactively labeled DNA in a bacteria