DNA Structure and Replication Quiz

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

What makes up a nucleotide?

• sugar, oxygen, and nitrogen base
• sugar, hydrogen and nitrogen base
• sugar, phosphate, and hydrogen
• sugar, phosphate, and nitrogen base

Which nitrogen base pairs with adenine?

• cytosine
• pyrimidine
• thymine
• guanine

What kind of bonds connect the two strands of DNA at the nitrogen bases?

• hydrogen
• covalent
• ionic
• van der wals

Which enzyme is responsible for unzipping the DNA helix during DNA Replication?

• helicase
• DNA polymerase
• ligase
• primerase

If a strand of DNA reads ATTGGCCAT, what is the complementary strand?

• TGGTTAAGG
• TAACGAGGA
• TAACCGGTA
• TAACCGAAT

The new molecule of DNA is referred to as __________________ because the parent strands are saved in the daughter strands.

• semiconservative
• conservative
• non conservative
• daughter molecule

Antiparallel configuration means that DNA strands of one helix are…

• Identical to one another
• Both 5’ ends are next to each other and the end of the strand is the 3’ end
• The 5’ end of the last base of one strand is opposite the 3’ end of the last base of the complimentary strand
• The structure of one strand is very different from the structure of the opposite strand in the helix

What enzyme is responsible for building the new DNA molecule?

• helicase
• DNA polymerase
• ligase
• primerase

DNA must stay in the ________________ of the cell.

• cytoplasm
• cell membrane
• nucleus
• vacuole