Multiple Choice
In the context of the RNA world hypothesis about the origin of life, which molecule is proposed to have evolved first as both a carrier of genetic information and a catalyst?
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1. Introduction to Genetics
History of Genetics
Multiple Choice
In the history of genetics, who is credited (along with a collaborator) with creating the first accurate double-helix model of DNA in 1953?
A
James Watson and Francis Crick
B
Gregor Mendel
C
Rosalind Franklin and Maurice Wilkins
D
Oswald Avery and Colin MacLeod
Verified step by step guidance1
Understand that this question is about the historical discovery of the DNA double-helix structure, a fundamental concept in genetics.
Recall that the first accurate double-helix model of DNA was proposed in 1953, which revolutionized our understanding of genetic material.
Identify the key scientists involved in this discovery: James Watson and Francis Crick are credited with building the first correct double-helix model.
Note that Rosalind Franklin and Maurice Wilkins contributed critical X-ray diffraction data that helped Watson and Crick develop their model, but they did not create the model themselves.
Recognize that Gregor Mendel is known as the father of genetics for his work on inheritance patterns in pea plants, and Oswald Avery and Colin MacLeod identified DNA as the genetic material, but neither created the double-helix model.
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