Exam 11: Molecular Structure of DNA and RNA

The two DNA strands of a double helix can be described as antiparallel but uncomplementary.

The helical shape of the DNA contains major and minor grooves,which assist in the regulation of gene expression.

A purine on one strand of the DNA is always paired with a pyrimidine on the other strand.

The fact that the two DNA strands are arranged in opposite orientations gives DNA its ________ characteristics.

The individuals who determined that Griffith's transforming principle was DNA were ________.

What form of DNA is most common in living organisms?

The first group of researchers to correctly identify the double-helix structure of DNA were ________.

Select the statements that are true about the Hershey-Chase experiments.

The individual(s)who used ball-and-stick models to identify the three-dimensional structure of proteins was ________.

Avery,Macleod,and McCarty used the enzyme ________ to remove the proteins from the cell extracts.

The ________ was/were labeled using the radioisotope ³²P in the Hershey-Chase experiments.

The fact that the type R and S strains of Streptococcus pneumoniae that Griffith worked with possessed small differences in capsule structure satisfies which of the following criteria for genetic material?

The researcher(s)who initially used X-ray diffraction to gather information on the DNA molecule was ________.

Select the researchers that are correctly matched with their discovery.

Select the nucleotide found only in RNA.

Which of the following is a left-handed DNA molecule?

Select the criteria that all genetic material must meet.

All nucleotides contain (check all that apply)

The backbone of the DNA molecule is formed by ________.

What features of DNA were suggested by Rosalind Franklin's X-ray diffraction data?