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Which of the following scientists determined that deoxyribonucleic acid (DNA) is comprised of a sugar-phosphate backbone? (Choose one answer)

A. Crick

B. Wilkins

C. Franklin

D. Watson

E. Chargaff

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Patrina Schowalter
Patrina SchowalterLv2
29 Sep 2019

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Related questions

1a. Who was the author of the 1968 book titled “The Double Helix”?

1b. Why was this book so controversial?

1c. What technique was Rosalind Franklin first introduced to in 1938 at Cambridge University?

1d. After completing her degree at Cambridge, to what country did Franklin move to continue her research studies?

1e. Why was Franklin required to stay away from her lab for several weeks?

1f. What research insti tution in England did Franklin move to after completing her work in France?

1g. What research institution in England did Watson and Crick work at?

1h. What was the first major discovery Franklin made about DNA?

1i. What methodology did Watson and Crick use to determine the structure of DNA?

1j. What specific information, other than the helical nature of DNA, did Watson and Crick obtain from the famous “Photo 51”?

1k. Why was it essential that Franklin's paper be published at the same time as Watson and Crick's paper?

1l. From 1953 to 1958, what was the focus of Rosalind Franklin's research?

1m. Which form of DNA discovered by Rosalind Franklin is wetter and found in cells?

1n. True or False: At one point, Watson and Crick were forbidden to continue on with their DNA structure research because of their technical errors.

1o. How many strands of DNA did Rosalind Franklin have to bundle together for her experimental work?

1p. What information about DNA was immediately apparent (to Watson, Crick, and other scientists) when they saw photo 51?

1q. Approximately how many hours did it take to expose one of Franklin's DNA photos?

1r. Without computers, approximately how long could it take to perform the calculations necessary to analyze on of Franklin's photographs?

1s. What two published conclusions (later shown to be incorrect) did Pauling make about DNA structure?

1t. In what year was Watson and Cricks DNA paper published?

1u.How old was Rosalind Franklin when she died?

1v. What disease was responsible for Franklin's death?

1w. What did Franklin regard as her “greatest scientific discovery”?

Which of the following statements describing the Watson-Crick model for DNA structure is INCORRECT?

A. DNA has two grooves running helically along its length, one of which is wider than the other.

B. The base-paired polynucleotide chains have antiparallel directions.

C. The classic Watson-Crick hydrogen bonding between AT and GC pairs is found in Z-DNA.

D. One turn of the double helix involves approximately 10 nucleotides.

E. The helical structure is stabilized entirely by hydrogen bonding.

1. Unlike DNA, RNA contains

deoxyribose

a double strand

phosphates

uracil

Nucleic acid structure

2. In transcription, uracil will bond with:

thymine

cytosine

adenine

guanine

Transcription

3. The first team of scientist to document the structure of DNA was:

Franklin and Wilkins

Watson and Crick

Pauling and Chargoff

None of the above

DNA structure

4. Organelles that synthesize protein are:

lysosomes

ribosomes

endoplasmic reticulum

golgi bodies

5. Most of the time in a cell's life, it's DNA is in the form of:

Chromatin

Chromatids

Replicated chromosomes

Spindle fibers

6. Uracil is a nitrogen base that pairs with adenine. Using this information, one could conclude that uracil is a:

Purine

Pyrimidine

Neither a purine or pyrimidine

Not enough information

7. a nucleotide does not consist of a:

polymerase

5-carbon sugar

phosphate group

nitrogen base

8. The genetic code in DNA of an individual depends on the sequence (order) of:

nucleotides

purines only

phosphates

sugars

9. Before a cell divides, it must duplicate its DNA in a process known as:

translation

transformation

transcription

replication

10. The basic unit (building block) of a protein is a (an):

carbohydrate

amino acid

lipid

hydrogen bond

11. Unlike DNA, RNA contains:

deoxyribose

a double strand

phosphates

uracil

12. The structure of DNA was first documented in:

1945

1953

1956

1962

13. In DNA replication, the new molecules produced are:

of unequal length

both assembled in the same direction

built with purines as the backbone

assembled in opposite directions

DNA replication

14. The "backbone" of DNA is composed of:

ribose and phosphates

deoxyribose and phosphates

ribose and uracil

deoxyribose and thymine

DNA structure

15. RNA differs from DNA in which of the following ways?

RNA is single-stranded

RNA contains ribose

RNA does not contain thymine

All of the above

DNA structure

16. Which of the following is NOT required for the transcription process itself?

RNA polymerase

DNA

uracil-containing nucleotides

ribosomes

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