History/Experiments
What did Avery conclude caused transformation?
a. DNA was the transforming factor.
b. A protein was the transforming factor.
c. A carbohydrate was the transforming factor.
d. A lipid was the transforming factor.
A) DNA was the transforming factor.
What two things back the backbone of a DNA strand?
Phosphate groups and deoxyribose sugar
DAILY DOUBLE!!
Counts for 200
The percentage of Adenine is equal to the percentage of ___________
Thymine
What protein acts as the zipper when replicating DNA?
Helicase
DAILY DOUBLE!
Counts for 200
What must DNA be capable of doing?
Copying information, Storing information and transmitting information
DAILY DOUBLE!!!
(Counts for 400, even if you miss you LOSE 400)
What do bacteriophage infect?
bacteria
What type of bond links the nitrogen bases
Hydrogen Bond
True or False: All Species have the same percentages of each base
False, although each species DNA should have the same amount of Thymine as Adenine and Guanine as Cytosine
DNA is wound up in bundles called _______________ prior to being replicated.
Chromosomes
What does DNA Stand for?
Deoxyribose Nucleic Acid
Which scientist made x-ray diffraction photos of DNA
Franklin
What is the shape of DNA?
Double Helix
If a strand of DNA has the code GCTGCGACG, what % of the strand will have Thymine?
2/9 or 22% (percentage is required for test)
DAILY DOUBLE
(counts for 600!)
During DNA Replication, a DNA stand that has the bases CTAGGT produces a strand with the bases of
GATCCA
How is DNA replication different in Eukaryotes than Prokaryotes?
Possible answers:Euk have multiple start points, Euk uses multiple DNA Polymerase, Euk has several strands and multiple chromosomes, Euk is linear(still double helix), Euk replicate in the Nucleus
Not Correct enough for test (because it doesn't have to do with replication of DNA: EUk has a nucleus, EUk are multicellular, Euk are animal and Plant cells
What would Hershey and Chase have concluded if both radioactive elements were found in the bacteria in their experiment?
The protein coat and the DNA were in the bacteria
What makes up a nucleotide?
deoxyribose sugar + phosphate group + any nitrogen base
If a DNA strand has 33% of Guanine, what %s are the other bases?
Cytosine - 33%
Thymine - 17%
Adenine - 17%
Describe the steps of DNA replication including the words: polymerase, helicase, replication fork, base pairs, adenine, thymine, guanine and cytosine
DNA Replication stars when the Helicase unzips at the replication fork. The Strands are separated and the DNA polymerase attaches. The DNA polymerase connects complementary base pairs, Adenine with Thymine, Cytosine with Guanine. Two strands are created in the end, each with one template from the original strand and one complementary side that was created.
How is DNA Replication similar between Eukaryotas and Prokaryotes(3 reasons)
Possible Correct: Both use the same bases, Both use the same enzymes, both create 2 strands, both replicate prior to division
Not Possible: Both are cells.