DNA and RNA Structure

Question 1

Use the drop-down menus below to match the scientist(s) to their contribution to the discovery of base pairings. studied the role of RNA in protein synthesis, specifically in the bacteria E. coli. created an accurate model of the structure of DNA. proposed the polynucleic model, stating that DNA and RNA were composed of nucleotides. concluded that, in DNA, adenine levels were equal to thymine levels and cytosine levels were equal to guanine levels.

Revolt · Accepted Answer

Levene; Chargaff; Watson and Crick; Nirenberg and Matthaei

Question 2

What is the role of RNA within the cell?

Revolt · Accepted Answer

RNA moves instructions for protein synthesis from the nucleus to ribosomes.

Question 3

In the diagram to the right, identify the three components of a nucleotide. Label A

Revolt · Accepted Answer

phosphate group

Question 4

Label B

Revolt · Accepted Answer

five-carbon sugar

Question 5

Label C

Revolt · Accepted Answer

nitrogenous base

DNA and RNA Structure Answers

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