DNA Structure and Replication Review

Which of the following nucleotide pair bonds would be found in a DNA molecule?

• adenine-guanine

• guanine-cytosine

• adenine-cytosine

• cytosine-uracil

The backbone of a DNA molecule consists of which two components?

• phosphates and ribose sugars

• deoxyphosphates and ribose sugars

• phosphates and deoxyribose sugars

• deoxyphosphates and deoxyribose sugars

Watson and Crick were the first to suggest that DNA is ____?

• a short molecule

• the shape of a double helix

• a protein molecule

• genetic material

The pairing of ___________in DNA is the key feature that allows DNA to be copied.

• nucleotides

• nitrogen bases

• chromosomes

• codons

The process by which a DNA molecule is copied is called________.

• binary fission

• mitosis

• replication

• translation

A DNA nucleotide may be made up of a phosphate group, along with ____________.

• deoxyribose sugar and uracil

• ribose sugar and adenine

• deoxyribose sugar and thymine

• ribose sugar and cytosine

Two corresponding nitrogen bases are joined using a __________

• Hydrogen bond

• Nitrogen bond

• Covalent bond

• Ionic bond