History of DNA/Scientists
Structure of DNA
Nucleotides
Vocab
Miscellaneous
100
Which famous duo discovered the double helix structure of DNA?
Watson & Crick
100
The structure of DNA is called a double helix, but is affectionately known as this every-day tool.
Step-ladder
100
What base pairs with Adenine (A)?
Thymine (T)
100
The twisted ladder shape of DNA is called ______________.
Double helix.
100
After Mendel's work with pea plants studying inheritance, one of these two molecules were believed to carry genetic material.
Protein or DNA.
200
Took Photo 51.
Rosalind Franklin
200
Where are the base pairs located in reference to the two-stranded DNA? Was this always the belief?
They're located inside the helix, but were once thought to stick on the outside.
200
What base pairs with Cytosine (C)?
Guanine (G)
200
Chargaff's data states the number of _______________ bases equals the number of pyrimidine bases in DNA.
Purine.
200
In prokaryotes, their DNA is arranged in this shape.
Ring/Circle
300
Was the very FIRST scientist to manipulate the S. pneumoniae virus indicating DNA was the likely molecule involved in inheritance.
Fredirick Griffith
300
This chemist's work was very important in finding the structure of DNA as he figured out the % of A and T are always the same -- and % of C and G are always the same.
Chargaff
300
Complete the following complimentary strand of DNA with your knowledge of base pairing.
C G G A C T A T
G C C T G A T A
300
This special protein is involved with nicely organizing DNA.
Histones.
300
What is the building block of a Nucleic Acid?
Nucleotide.
400
These famous scientists used radioactive labeling to see if DNA or protein held genetic information. DNA only was observed -- proving it carried genetic material, not protein.
Hershey & Chase
400
DNA is located here in plants and animals.
The nucleus.
400
How many rings do purine have? pyrimidines?
Purines : 2 rings
Pyrimidines: 1 ring
400
DNA supercoils to make up the structure known as __________.
Chromosomes.
400
DNA + histones form this structure.
Nucleosome
500
This scientist built on a previous scientist's experiment by isolating DNA and proteins before manipulating them and finding DNA to be the genetic material carrier.
Avery
500
This hyphenated phrase describes the orientation of DNA with respect to how the 2 strands are connected.
Anti-Parallel
500
Draw and label the parts of a nucleotide.
500
This is another name for nucleotide base pairs.
Nitrogenous bases.
500
What two bases are pyrimidines? Which are purines?
Purines: Adenine (A) and Guanine (G)
Pyrimidines: Cytosine (C) and Thymine (T)