Identify each of the following as a purine or a pyrimidine and name them.

b.

Identify each of the following as a purine or a pyrimidine:

a. guanine

What is the difference between ribose and deoxyribose?

List the names and abbreviations of the four nucleotides in RNA.

Provide the products for each of the following condensation reactions:

a.

Provide the products for each of the following condensation reactions:

a.

Provide the products for each of the following condensation reactions:

b.

What is the name of the bond that joins nucleotides in a nucleic acid?

Describe the differences in the two ends of a nucleic acid.

Draw the dinucleotide AT that would be found in DNA. Label the 5' and 3' ends of your structure. Identify the phosphodiester bond.

Describe the orientation of antiparallel strands in DNA. Use the terms 3' and 5' in your description.

How are the two strands of nucleic acid in DNA held together?

Write the base sequence and label the 3' and 5' ends of the complementary strand for a segment of DNA with the following base sequences:

b. 5'CCCCTTTT3'

Write the base sequence and label the 3' and 5' ends of the complementary strand for a segment of DNA with the following base sequences:

d. 5'CGCGATATTA3'

Fill in the following table with the analogous nucleic acid structures:

List the similarities and differences in the secondary structure of a protein and the secondary structure of DNA.

Name the three types of RNA and their functions.

List the mRNA bases that complement the bases A, T, G, and C in DNA.

The sequence of bases in a DNA template strand is 5'GGCTTATTGCCA3'. What is the corresponding mRNA produced?

Why are there at least 20 tRNAs?

Provide the three-letter amino acid sequence expected from each of the following mRNA segments:

b. 5'UUU|CCC|UUU|CCC3'

The following portion of DNA is in the template DNA strand: 3'TGT|GGG|GTT|ATT5'

b. Write the anticodons corresponding to the codons on the mRNA.

Consider the following portion of mRNA produced by the normal order of DNA nucleotides:

5'CUU|AAA|CGA|GUU3'

a. Write the amino acid sequence that would be produced from this mRNA.

Consider the following portion of mRNA produced by the normal order of DNA nucleotides:

5'CUU|AAA|CGA|GUU3'

c. Write the amino acid sequence if a mutation changes CGA to AGA. Is this likely to affect protein function?

Consider the following portion of mRNA produced by the normal order of DNA nucleotides:

5'CUU|AAA|CGA|GUU3'

e. What happens to the protein sequence if an A is added to the beginning of the chain and the sequence changes to 5'ACU|UAA|ACG|AGU3'?

Consider the following portion of mRNA produced by the normal order of DNA nucleotides:

5'ACA|UCA|CGG|GUA3'

c. Write the amino acid sequence if a mutation changes CGG to GGG. Is this likely to affect protein function?

Consider the following portion of mRNA produced by the normal order of DNA nucleotides:

5'ACA|UCA|CGG|GUA3'

f. What happens to the protein sequence if the A is removed from the beginning of the chain and the sequence changes to 5'CAU|CAC|GGG3'?

For each of the following, note whether the component can be found in a virus, a cell, or both.

b. DNA polymerase

For each of the following, note whether the component can be found in a virus, a cell, or both.

c. capsid

For each of the following, note whether the component can be found in a virus, a cell, or both.

a. RNA