Molecular Biology- Match the statement with the correct scientist

5.
Match the statement with the correct scientist.

a) F. Griffith
b)J. Watson and F. Crick
c) F. Miescher
d) R. Franklin
e) Hershey and Chase
f) P. Levene

1. described a substance isolated from the nuclei of WBCs as "nucleic acid"

2. determined DNA was made of nucleotides

3. formulated the "transforming principle" that something from a "dead" pathogenic bacteria transformed a "living" non-pathogenic bacteria

4. demonstrated that DNA and not viral protein enters a host cell; that DNA directs the host cell to make new viruses

5. used X-ray technology to conclude DNA was a double helix; two strands twisted like a spiral staircase

6. described DNA in 1953 as a double helix; set forth the basic structure of DNA



6.

a)thymine and cytosine

b)complimentary base pairs

c) chromosome

d) double helix

e) adenine and guanine

f) deoxyribose

g) antiparallel

h) nucleotide

I) histones (p552)

j) weak hydrogen bonds

1.
Q6A

2. A = T ; C ≡ G ; (A = U, in RNA)

3. two strands of nucleotides similar in shape to a "twisted ladder"

4.
Q6B

5. a 5-carbon sugar found in DNA (missing one atom of carbon)

6. a length of tightly packed DNA and its associated proteins

7. one strand of nucleotides run in opposite directions of the nucleotides comprising the other strand

8. derived from compounds known as pyrimidines; single nitrogen-ringed structure

9. derived from compounds known as purines; a double nitrogen-ringed structure

10. are formed between A = T, (2 H-bonds) and C ≡ G, (3 H-bonds)