Exam 13: Dna and Its Role in Heredity

Meselson and Stahl were trying to determine if DNA replication was semiconservative, conservative, or dispersive by labeling E. coli DNA with a regimen of heavy nitrogen (H) for one round of replication and then transferring these cells to light nitrogen (L) for two more rounds of replication. Which of the following statements would not be true within the context of this experiment?

The basic units of DNA and RNA molecules are the _______.

Information sources used by Watson and Crick to determine the structure of DNA included

The primer used for DNA replication

Fragments like those now called Okazaki fragments might have been hypothesized even before they were discovered by Reiji Okazaki because

At the end of DNA replication, two DNA molecules are produced, each one consisting of a parental DNA strand and a new DNA strand. This process is known as

Which of the following molecules functions to transfer information from one generation to the next in eukaryotes?

Why is RNA incorporated into the DNA molecule during DNA replication?

Purines include

In one Hershey-Chase experiment, bacteriophage nucleic acids were labeled by carrying out an infection of E. coli cells growing in

During replication, the new DNA strand is synthesized

Which feature of the Watson-Crick model of DNA structure explains its ability to function in replication and gene expression?

In DNA replication,

The energy necessary for making a DNA molecule comes directly from

The error rate of changing an incorrect base with another incorrect base during proofreading is one in _______ bases.