DNA and Replication

What does DNA stand for?

• deoxyribonnucleic acid

• deoxyribose sugar

• DNA polymerase

• double nitrogen helix acid

Which base always pairs with adenine

• thymine

• cytosine

• adenine

• guanine

Which base always pairs with cytosin

• thymine

• cytosine

• adenine

• guanine

If one strand of DNA has a base sequence ATGGCT, the complimentary strand would contain?

• TACCGA

• ATCCGA

• TTGGGT

• TTGCCT

Which molecule make up the sides of the DNA ladder?

• sugar and phosphates

• nitrogen bases

• adenine and thymine

• cytosine and guanine

DNA can repair itself if it becomes damaged. What enzyme "snips" out the damaged portions of the molecule?

• nuclease

• histone

• DNA polymerase

• gene

small segment of DNA that contains the instructions for building a particular protein.

• nuclease

• histone

• DNA polymerase

• gene

The names of the two scientists who discovered the structure of the DNA molecule.

• Watson and Crick

• Wayne and Collin

• Watson and Chris

• Wayne and Crick

name is given to the nitrogen bases that have a 2-ring structure?

• purines

• pyrimidines

• nuclease

• gene

name is given to the nitrogen bases that has a single structure?

• purines

• pyrimidines

• nuclease

• gene