Exam 14: Dna Structure, Replication, and Organization

The transforming principle described by Griffith in his work with Streptococcus pneumoniae was later shown by Avery, MacLeod, and McCarty to be ____.

Imagine that a cell contains a genetic mutation in the gene encoding the primase enzyme, rendering it unable to synthesize RNA strands. Assuming that all of the other enzymes directly involved in DNA replication are still functional in these cells, how much of the DNA replication process would you expect to see in these cells?

If a stretch of human double-stranded DNA contains 47% G and C bases, then ____.

Reiji Okazaki discovered what are now called "Okazaki fragments" produced during DNA replication. These fragments are ____.

The genetic material of all living organisms is ____.

Variability in offspring is largely a result of ____.

The energy to form the new bonds between nucleotides in a growing DNA strand is provided primarily by ____.

In prokaryotes, the DNA molecule that makes up a chromosome is ____ and has ____ replication origin.

Nucleosomes are best described as ____.

The components of nucleosomes is(are) ____.

The genome of an organism contains 30% adenine. Based on this, you would predict that this organism's genome also contains 30% ____.

The width of a DNA double helix ____.

The nucleosome core particle consists of ____.

Adding nucleotides onto a growing DNA strand during DNA replication in cells occurs in ____.

Each DNA nucleotide is composed of ____.

Which nucleotide sequence is complementary to the DNA sequence 5'-GACGTT-3'?

In the Hershey and Chase experiment,³²P was used to label ____ and³⁵S was used to label ____.

Purines and pyrimidines are ____.

In the Hershey and Chase experiment, phage-infected bacteria and viral progeny were radioactive following bacterial infection with³²P-labeled viruses. Why?

Describe the roles of the following enzymes during DNA replication: ligase, single-stranded binding proteins (SSBs), DNA polymerase III, primase, DNA helicase.