DNA/Mutations Quiz

DNA is replicated (duplicated) in a _______ fashion.

• semi-conservative (1 parent strand, 1 new strand)

• fully conservative (both parent strands)

• not conservative (2 new strands)

Cytosine pairs with _______.

• cytosine

• guanine

• adenine

• thymine

Adenine pairs with ______.

• adenine

• guanine

• thymine

• cytosine

A key difference with RNA is that RNA uses _______ instead of thymine.

• adenine

• uracil

• guanine

• cytosine

How is RNA different from DNA?

• RNA is one strand; DNA is two strands

• RNA is two strands; DNA is one strand

• Both are two strands

• Both are one strands

Who discovered the structural model of DNA as a double helix?

• Watson and Click

• Walson and Click

• Watson and Crick

• Walson and Crick

What is the structural shape of DNA?

• single helix

• double helix

• triple helix

• quadruple helix

DNA is made up of small repeating subunits called:

• amino acids

• nucleotides

• fatty acid chains

• carbohydrates

The nitrogenous base pairs (A, T, C, G) are held together by _____ bonds.

• ionic

• covalent

• van der Waals

• hydrogen

A nucleotide consists of a phosphate, deoxyribose sugar, and _____.

• a nitrogenous base

• an oxygenated base

• a hydrogenous base

• a fluorinated base