The energy necessary for making a DNA molecule comes directly from the:
(1) Sugar
(2) ATP
(3) Release of phosphates
(4) NADPH
The force that holds DNA together in a double helix is:
(1) The force of the twist
(2) Covalent bonds
(3) Ionic bonds or ionic interactions
(4) Hydrogen bonds
The enzyme that unwind the DNA prior to replication is called:
(1) DNA polymerase III
(2) DNA ligase
(3) Primase
(4) Helicase
If Hershey and Chase had found 'S in both the pellet and the supernatant, the conclusion about the nature of DNA replication would be that:
(1) Protein must be the information molecule
(2) It would be difficult to conclude anything from these results
(3) DNA is the genetic information molecule
(4) Phage must have stuck to the bacteria
Experiments by Avery, Macleod, and McCarty supported DNA as the genetic material by showing that:
(1) Both protein and DNA samples provided the transforming factor
(2) DNA was not complex enough to be the genetic material
(3) Only samples with DNA provided transforming activity
(4) Even though DNA was molecularly simple, it provided adequate variation to act as the genetic material
Which statement about complementary base pairing is not true?
(1) It plays a role in DNA replication
(2) In DNA, T pairs with A
(3) Purines pair with purines, and pyrimidines pair with pyrimidines
(4) In DNA, C pairs with G
Western Blot hybridization is used for:
(1) DNA analysis
(2) RNA analysis
(3) Protein analysis
(4) Polysaccharide analysis
SNP which is pronounced as "snips” stands for:
(1) Small nuclear protein
(2) Single nucleotide particle
(3) Single nucleotide polymorphism
(4) Small nicking points
The length of E. coli DNA and length of DNA in a human 2N cell is:
(1) 1.36 mm and 2.2 m respectively
(2) 1.36 mm and 2.2 mm respectively
(3) 1.3 ìm and 2.2 ìm respectively
(4) 1.36 cm and 2.2 cm respectively
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