1
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Which are segments of DNA that code for specific traits?
A
genesB
chromosomesC
proteinsD
codons2
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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 Matthaei3
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 sugar4
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.
6
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 pus7
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 = G8
If the same base pairs are used to code for all organisms, why is there so much variation among organisms?
A
The order of the codons differs between organisms.B
The order of the codons is the same between organisms.C
The codons in each organism are the same.D
The codons in each organism differ.9
What is one benefit of mapping the human genome?
A
locating the chromosomal abnormalities that cause diseaseB
having the genomes of every living individual on fileC
choosing the gender or intellectual ability of an unborn childD
cloning the individuals that comprise a nearly extinct tribe10
Who first identified DNA?
A
Rosalind FranklinB
Erwin ChargaffC
Friedrich MiescherD
James WatsonDid you find these answers helpful?
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