20 questions
What is the shape of DNA?
Double Hyperbola
Paraolic
Double Helix
Linear
Which base is only found in RNA?
Uracil
Thymine
Adenine
Guanine
Which Nitrogen bases go together?
Adenine and Cytosine
Adenine and Thymine
Cytosine and Guanine
Thymine and Guanine
What was Rosalind Franklin's role in the discovery of the structure of DNA?
She discovered that DNA is made of nucleotides
She carried out X-ray diffraction experiments leading to the determination that DNA is a double helix.
She carried out X-ray diffraction experiments and concluded that DNA strands run in opposite directions.
She produced the three-dimensional molecular model of DNA to show that it is a double helix.
Which is a single stranded molecule?
DNA
RNA
Both
Nucleotides are held together by _____ bonds.
metallic bonds
James Bond
ionic bonds
covalent bonds
Other than the nucleus, DNA can be found in what two organelles?
mitochondria and ribosomes
mitochondria and lysosomes
mitochondria and chloroplasts
chloroplasts & ribosomes
Purines:
Double ringed structures
Single ringed structures
Pyrimidines:
Double ringed structure
Single ringed structure