The Oswald T. Avery Collection

Title:: "Effect of Ribonuclease on Deproteinized Extract 5-40" (image 1)

(high resolution jpg) High resolution version (6,993,612 Bytes)

Description:

Caption by Maclyn McCarty reads: "An experiment in January 1941, carried out to reconfirm earlier work indicating that ribonuclease has no effect on the transforming substance. The diphenylamine test for desoxyribose was used for the first time in testing various fractions. MacLeod's comment reads: 'Thus it would appear as though these transforming extracts may contain a little desoxyribosenucleic acid in addition to the large amount of ribosenucleic acid present.'"

Item is handwritten.

Number of Image Pages:

1 (168,249 Bytes)

Date:

1941-01-28 (January 28, 1941)

Creator:

[MacLeod, Colin M.]

[Avery, Oswald T.]

Rights:

Courtesy of Maclyn McCarty.

Subject:

Medical Subject Headings (MeSH):: Ribonucleases

Exhibit Category:

DNA as the "Stuff of Genes": The Discovery of the Transforming Principle, 1940-1944

Relation:

"Effect of Ribonuclease on Deproteinized Extract 5-40" (image 2) (January 28, 1941)

"Effect of Ribonuclease on Deproteinized Extract 5-40" (image 3) (January 28, 1941)

"Effect of Ribonuclease on Deproteinized Extract 5-40" (image 4) (January 30, 1941)

Box Number: 1

Folder Number: 4

Unique Identifier:

CCAACF

Document Type:

Laboratory notes

Language:

English

Format:

image/jpeg

image/tif

Physical Condition:

Good

Series: Research and Discovery of the Transforming Principle, 1912-1999

SubSeries: Preliminary Research

Folder: Laboratory Notes, 1940-1946

Metadata Last Modified Date:

2006-12-12

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