Ch. 4 Panopto
How many phosphate groups are present in a molecule of ATP?
3
If a DNA sample were composed of 20% thymine, what would be the percentage of guanine?
30%
What sugar is found in DNA?
Deoxyribose
Dehydration reaction to make a phosphodiester linkage
Forms between 3' hydroxyl of one and 5' phosphate
What types of bonds are broken when complementary DNA strands are separated?
Hydrogen bonds
If an RNA sample were composed of 20% adenine, what would be the percentage of guanine?
It is impossible to determine from the information given
What does it mean to say that strands in a double helix are antiparallel?
They have opposite directionality, or polarity
The directionality of a nucleic acid strand arises from the fact that:
the two ends of the strand have different chemical groups
How many of the items listed are found in DNA?
-5 -Deoxyribose, adenine, cytosine, guanine, thymine
What type(s) of bonds hold together a single strand of DNA?
-Covalent bonds -Phosphodiester bonds
Base pairing
-G-C -A-T or U -Purines - Pyrimidines
What type(s) of bonds hold together the two strands of a DNA double helix?
-Hydrogen bonds
The molecule shown is
-RNA -Phosphate, sugar or base -2' sugar -Hydroxyl group -Ribose