DNA and RNA

DNA stands for

• deoxyribonucleic acid

• ribonucleic acid

• ditoxide ribonucleic acid

what is the monomer of a nucleic acid

• nucleotide

• amino acid

• protein

What are the three parts of a nucleotide

• phosphate group

• deoxyribose sugar

• nitrogen base

• hydrogen bond

• two matching nitrogen bases

how many carbon rings do purines have?

• 1

• 2

• 3

how many carbon rings do pyrumidines?

• 1

• 2

• 3

match the nitrogen bases for DNA

(2 answers)

• thymine-->adenine

• adenine-->cytosine

• cytosine---> guanine

• guanine-->thymine

adenine and guanine are

• purines

• pyrimidine

cytosine and thymine are

• purines

• pyrimidines

which scientist figured out that certain nitrogen bases go with other certain nitrogen bases

• erwin chargaff

• rosalind franklin

• watson and crick

who took the famous photo 51

• watson and crick

• erwin chargaff

• rosalind franklin