The following sequence of RNA forms a “hairpin” structure. The duplex region contains all Watson-Crick base pairs without any gaps or mismatches.

5′-CGUAUACUAGACUGCUGGUCUAGUUACU-3′

In the space below, type the sequence of either of the two regions that form a duplex with each other.

Be careful not to type any spaces or additional characters. For example, if you think the answer is 5'-AGCC-3', simply type AGCC.

Which of the following are nucleotide subunits typically found in DNA?

One strand of a DNA duplex has the sequence:

5′-CTACAGATGT-3′

Type the sequence of the complementary strand in the 5′ to 3′ direction.

Be careful not to type any spaces or additional characters. For example, if you think the answer is 5'-AGCC-3', simply type AGCC.

Which of the following statements correctly identifies a hydrogen bond donor and a hydrogen bond acceptor in the base pair structure shown below?

Shown below is a DNA duplex sequence, including both the coding (top) and non-coding (bottom) strands. 

Which one of the following pairs of oligonucleotide primers would be most suitable for amplifying (by PCR) the region of this duplex shaded in yellow?

[Note: You are not expected to estimate Tm values for these primers. If they have the correct sequence to anneal in the correct position, you should assume that they will.]

Shown below are three short DNA duplexes.

What is the correct order of stability of these duplexes (from most stable to least stable)

[Note: You do not need to calculate T_m values. You should be able to determine the order of stability “by eye”.]

Which of the following types of cells typically contain a nucleus?

The cellular component transfer RNA (tRNA) is best classified as:

A common property of all organisms is evolution.

Evolution is best defined as:

A common property of all organisms is homeostasis.

Homeostasis is best defined as: