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

In many organisms,____________________ functions to transfer genetic information from the nucleus to the cytoplasm.

Rosalind Franklin did not share a part of the 1962 Nobel Prize for Medicine or Physiology because she had died four years earlier.

Adenine and guanine are nitrogen-containing bases found in nucleic acids.

Molecules are composed of two or more ____________________ chemically ____________________ together.

The basic building block of DNA and RNA is a(n)____.

A replicated DNA molecule contains one new strand and one old strand.

Sugars and phosphates are held together in a DNA molecule by a(n)____________________ bond.

Explain why X-ray diffraction was important in the study of DNA structure and describe the procedure used in X-ray diffraction.

Because RNA is single-stranded,it does not participate in the regulation of gene expression.

Because genetic information is stored as a linear sequence of bases in DNA,any change in the order or number of bases in a gene can result in a(n)____________________ that produces an altered ____________________.

Once the strands of DNA are separated,the enzyme DNA polymerase ____ and links nucleotides together.

A lawsuit,filed in 2009,challenged the idea that genes can be ____________________.

Outline the major arguments for and against the idea of patenting genes.

Histones are the ____.

The name of the enzyme that replicates DNA is ____________________.

Bacteriophages are viruses that ____.

The type of chemical bond that holds together adenine and thymine in the middle of a DNA molecule is a(n)________________ bond.

The sugar found in DNA is a(n)____________________.

After contracting SARS,about ____ percent of the infected died.

Each chromosome contains a constricted region called a(n)____________________ where sister chromatids attach.