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Genetic Code — Quiz Answers

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1
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Who first identified DNA?

A
Rosalind Franklin
B
James Watson
C
Friedrich Miescher
D
Erwin Chargaff
2
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Who is credited with creating the first accurate model of DNA?

A
Rosalind Franklin
B
James Watson and Francis Crick
C
Marshall Nirenberg and Heinrich Matthaei
D
Friedrich Miescher
4

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

A
discovery of codons
B
creation of a model of DNA
C
creation of Photo 51
D
discovery and extraction of DNA
7

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

A
cap A is equal to cap g ; cap t is equal to cap u
B
cap A is equal to cap u ; cap c is equal to cap g
C
cap A is equal to cap c ; cap t is equal to cap g
D
cap A is equal to cap t ; cap c is equal to cap g
8

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

A
identification of DNA in bandages that contained pus
B
creation of an X-ray diffraction image of DNA structure
C
identification of a pattern in ratios of DNA bases
D
creation of an accurate model of DNA structure
9

In 1953, who developed this model? Expand Image

A
James Watson and Francis Crick
B
Erwin Chargaff
C
Rosalind Franklin
D
Marshall Nirenberg and Heinrich Matthaei
10

Which of these incorrectly matches the term with its location?

A
Nitrogen bases are located in the central rungs of a DNA ladder.
B
Genes are located in a nucleotide.
C
Chromosomes are found in the nucleus of a cell.
D
DNA is found in a chromosome.

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Genetic Code — Quiz Answers — Biology