Exam 8: The Structure - Replication - and Chromosomal Organization of DNA

One double-stranded DNA molecule combined with proteins form ____________________,which is visible as clumps or threads in the cell nucleus.

The woman scientist who made a major contribution to the discovery of the structure of DNA was _____________________.

In the Watson-Crick model of DNA structure,the polynucleotide chains ____.

DNA vaccines ____.

Outline three properties of genes for which the Watson-Crick model offers an explanation.

DNA's two major functions are to ____________________ and to carry the ____________________ information for proteins and RNA molecules.

Despite evidence to the contrary,many scientists during the mid-twentieth century remained convinced that ____________________ were the carrier of genetic information.

DNA contains two identical polynucleotide chains.

A phosphate group is a compound containing phosphorus ____.

Figure -Describe the structure of DNA using the accompanying figure as a reference.

Describe the chemical composition of DNA.

Describe the organization of a human chromosome.

Proteins contain twenty different subunits ____.

The H5N1 influenza killed more than 50% of those infected.

Telomerase is an enzyme that adds telomere repeats to the ends of ____________________.

One of the two strains of Streptococcus pneumoniae isolated in the 1920s was surrounded by a ____________________,giving it the ability to evade the immune system and cause pneumonia.

In June 2013,the U.S.Supreme Court ruled that if a gene is removed from the human body and purified it can be patented.

A(n)____________________ is made up of a sugar,a phosphate,and a nitrogenous base.

If one strand of DNA has the sequence 5'-CCGTAGCA-3',the complementary strand would be written as ____________________.

Nucleosomes are bead-like structures ____.