Back to notes
Explain the significance of DNA being complementary.
Press to flip
Knowing one strand of DNA allows prediction of the complementary strand because A pairs with T and C pairs with G.
Which nitrogen bases are purines?
Adenine and Guanine.
Name the four nitrogen bases found in DNA.
Thymine, Adenine, Cytosine, Guanine.
What type of bonds form between cytosine and guanine?
Three hydrogen bonds.
Which scientists are credited with the discovery of DNA's structure?
Watson, Crick, Wilkins, and Franklin.
Explain the mnemonic 'A-T two' and 'C-G three'.
It helps remember that A-T pairs form two hydrogen bonds and C-G pairs form three hydrogen bonds.
Which nitrogen bases are pyrimidines?
Cytosine and Thymine.
What type of bonds form between adenine and thymine?
Two hydrogen bonds.
Where is DNA found in eukaryotic cells?
In the nucleus.
What structural role do deoxyribose sugars and phosphates play in the DNA molecule?
They form the backbone of the DNA double helix.
What are the base pairing rules in DNA?
Adenine pairs with Thymine, and Cytosine pairs with Guanine.
Why did Rosalind Franklin not receive the Nobel Prize for the discovery of DNA structure?
Because she had passed away before the prize was awarded.
What are the repeating subunits of DNA called?
Monomers or nucleotides.
Describe the basic structure of the DNA double helix.
The DNA double helix has a backbone made of alternating sugar and phosphate molecules with nitrogen bases on the inside forming base pairs.
What are the three main components of a DNA nucleotide?
Phosphate group, deoxyribose sugar, and nitrogen base.
Previous
Next