AnswersHVA 26-27 IM Biology ALab: Identifying Nutrients

Lesson 1: Genetic Code Answers

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21
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According to Chargaff's rule, base pairing in DNA should resemble which of the following?

A
A = T; C = G
B
A = C; T = G
C
A = G; T = U
D
A = U; C = G
22
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As DNA is replicated, which DNA base pair will bond to cytosine?

A
adenine
B
thymine
C
cytosine
D
guanine
23

Rosalind Franklin is famous for which contribution to the study of DNA?

A
creation of an accurate model of DNA structure
B
creation of an X-ray diffraction image of DNA structure
C
identification of a pattern in ratios of DNA bases
D
identification of DNA in bandages that contained pus
24

What was Marshall Nirenberg and Heinrich Matthaei’s contribution to our current understanding of the genetic code?

A
discovery of codons
B
discovery and extraction of DNA
C
creation of a model of DNA
D
creation of Photo 51

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