1
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Who is credited with creating the first accurate model of DNA?
A
Rosalind FranklinB
Friedrich MiescherC
James Watson and Francis CrickD
Marshall Nirenberg and Heinrich Matthaei2
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What was Marshall Nirenberg and Heinrich Matthaei’s contribution to our current understanding of the genetic code?
A
discovery of codonsB
discovery and extraction of DNAC
creation of a model of DNAD
creation of Photo 513
Which of the following incorrectly matches the term with its location?
A
DNA is found in a chromosome.B
Chromosomes are found in the nucleus of a cell.C
Genes are located in a nucleotide.D
Nitrogen bases are located in the central rungs of a DNA ladder.4
What basic unit of heredity is found on segments of DNA and are passed on from parent to offspring?
A
nucleotideB
geneC
phosphate moleculeD
deoxyribose sugar5
Rosalind Franklin is famous for which contribution to the study of DNA?
A
creation of an accurate model of DNA structureB
creation of an X-ray diffraction image of DNA structureC
identification of a pattern in ratios of DNA basesD
identification of DNA in bandages that contained pus6
Which bases are found in a strand of DNA?
A
thymine, guanine, cytosine, uracilB
guanine, cytosine, uracil, adenineC
cytosine, glycine, adenine, thymineD
adenine, thymine, guanine, cytosine
8
According to Chargaff's rule, base pairing in DNA should resemble which of the following?
A
A = T; C = GB
A = C; T = GC
A = G; T = UD
A = U; C = G9
In 1953, who developed the model that is shown below?
A
James Watson and Francis CrickB
Marshall Nirenberg and Heinrich MatthaeiC
Rosalind FranklinD
Erwin Chargaff10
Which are segments of DNA that code for specific traits?
A
genesB
chromosomesC
proteinsD
codonsDid you find these answers helpful?
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