DNA polmerase functions to

• read DNA and build new DNA strand

• unwind the DNA helixThis is a wrong answer

• read DNA and build mRNA

• "zip" up the new copy of DNA

A DNA nucleotide is made up of

• DNA and RNA

• deoxyribose, phosphate group and nitrogenous base

• ribose, phosphate group and nitrogenous base

• deoxyribose, phosphate and uracil

"We have discovered the secret of life" was proudly proclaimed by

• Hershey and Chase

• Avery, McCleod and McCarty

• Wilkens and Frankline

• Watson and Crick

As DNA is replicated, the new strands formed from 1/2 the old strand and 1/2 new built up from nucleotides. This is known as DNA's ____ nature

• complimentary

• semi-conservative

• anti-parallel

• helical

Thymine bonds with

• guanine

• uracil

• cytosine

• adenine

Who found out the base pair rule and that percentages of bases where species specific?

• Watson

• Chargaff

• Franklin

• Pauling

What type of bonds hold nitrogenous bases together?

• hydrogen

• peptide

• covalent

• ionic

The enzyme that works to unwind the helix for replication or transcription is

• helicase

• ligase

• DNA polymerase

• proteinase

Which of the following is NOT a difference between DNA and RNA?

• sugar present

• phosphate present

• the number of strands

• length of molecule

The triplet ATT in DNA codes for __ in mRNA

• UAA

• AUU

• TAA

• start