Exam 2: The Molecular Nature of Genes

In a DNA synthesis reaction the use of the following dATP molecule labeled with phosphorous-32 at the gamma position would result in a radioactively labeled DNA strand.

DNA strands absorb more light when the strands are separated by heat,high pH,or organic solvents.

The overall length of one full turn of the B-DNA helix is

The Hershey-Chase experiments depended on two types of radioactive labels- __________________ for DNA and __________________for proteins.

The melting temperature of DNA is the point at which 50% of the strands are denatured.

The annealing of two different polynucleotide strands is called _____________.

The bases and sugars in DNA and RNA are joined together to form units called_____________.

The bonds that connect adenine to thymine in a DNA double helix are

Which of the following is the best way to determine the base content of DNA?

Which of the following would prevent the formation of a phosphodiester bond in DNA?

The phosphodiester bond in DNA is an example of a hydrogen bond.

Experiments conducted by Frederick Griffith laid the foundation for

Phosphodiester bonds are examples of

Which of the following would be the substance of choice to destroy the DNA in a solution?

The A- and B-forms of DNA structures are right-handed.

The ability of two polynucleotide strands to hybridize is based on which of the following principles?

In experiments conducted by Griffith,the inability of the avirulent strain to produce a lethal infection was due to

One of Chargaff's rules states that the amount of cytosine is equal to the amount of _________________in DNA.

The analytic tools used to show that DNA was the transforming substance include all of the following except

Rapid cooling of DNA following heating at high temperature will cause