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Biology Life on Earth

Biology

Quiz 11 :

Dna: the Molecule of Heredity

Quiz 11 :

Dna: the Molecule of Heredity

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The two polynucleotide chains in a DNA molecule are attached to each other by:
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Multiple Choice
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Answer:

B

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When Griffith experimented with two types of Streptococcus pneumoniae, he found that:
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Answer:

D

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In Griffith's experiments, what happened when heat-killed S-strain bacteria were injected into a mouse along with live R-strain bacteria?
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Answer:

B

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In DNA, phosphate groups bond to:
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The hereditary material present in all cells is:
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All of the following are found in DNA EXCEPT:
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Complementary base pairs are held together by:
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The "rule" formulated by Chargaff states that:
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If the DNA of a certain organism has guanine as 30% of its bases, then what percentage of its bases are adenine?
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"Chargaff's rule" for base pairing in DNA is that:
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The sequence of subunits in the DNA "backbone" is:
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DNA possesses:
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A DNA nucleotide is made up of (in the correct sequence):
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By the early 1950s, many biologists realized that the key to understanding inheritance lay in the structure of:
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In a DNA molecule, base pairing occurs between:
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What was the most significant conclusion of Griffith's experiments with pneumonia in mice?
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In an analysis of the nucleotide composition of DNA to see which bases are equivalent in amount, which of the following is true?
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What is the relationship among DNA, a gene, and a chromosome?
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The X-ray diffraction pattern for DNA suggested to Wilkins and Franklin all of the following features about DNA EXCEPT:
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If the quantities of the four bases in a DNA molecule are measured, we find that:
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