Frederick Griffith discovered
A) transformation.
B) transposons.
C) the lac operon.
D) DNA.
E) conjugation.
A
Bloom's Taxonomy: Knowledge
Section: Genetic Recombination and Transfer
Learning Outcome: 7.29, 7.32
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The concept of a species was proposed by
A. Charles Darwin. B. John Ray. C. Carolus Linneaus. D. Erasmus Darwin. E. George Cuvier.
The two strands of a DNA double helix are said to be antiparallel. This means that ____
a. the 5' end of one strand is directly paired with the 5' end of the other strand b. since the double helix twists, it is not perfectly parallel c. one strand has a negative charge and the other strand has a positive charge
d. the 5' end of one strand is directly paired with the 3' end of the other strand e. both strands have a negative charge
The measure of the light-bending ability of a medium is the
a) illumination. b) magnification. c) refractive index. d) resolution.
Jess has A- blood type, has never received a blood transfusion, and never been pregnant. Antibodies against what blood antigens could be present in Jess' blood?
A) O and Rh antigens B) B antigens C) A antigens D) B and Rh antigens E) O antigens