Nucleic Acid

Protamines chiefly contain which amino acid?

• Lysine

• Tryptophan

• Arginine

• Glutamic Acid

Phosphoproteins which cannot be separated into proteins and nucleic acid by high salt concentration alone are referred to as what?

• Histones

• Protamines

• Nucleoprotein

• Lipoproteins

Ribose has a hydroxyl group on which carbon?

• Two

• One

• Three

• Four

Which of the following is NOT a pyrimidine?

• Cytosine

• Uracil

• Adenine

• Thymine

The breakdown of nucleosides is via what process?

• Phosphorolysis

• Plasmolysis

• Hydrolysis

• Cytolysis

What differentiates a nucleosides from a nucleotide?

• Ribose

• Deoxyribose

• Phosphate

• Nitrogenous base

In phosphorylation reactions in the body, the only nucleotides formed are phosphorylated at what carbon position?

• Two

• Three

• Four

• Five

Which base pair bond is stronger in DNA?

• C-T

• A-T

• C-G

• A-G

Which nucleoside is only found in RNA?

• Adenosine

• Uridine

• Cytidine

• Thymidine

which of the following characterizes the distribution of DNA in tissues and cells?

• The nuclei of tissue cells from an animal of a given species contain a relative variable amount of DNA per nucleus

• The number of tissue cells can be determined by an estimation of the DNA content

• The nuclei of a germ cell contain 1/4 the DNA present in somatic cells