A normal male marries a color-blind woman. What percent of their female children will be color-blind?
A) 0%
B) 25%
C) 50%
D) 75%
E) 100%
Ans: A) 0%
Biology & Microbiology
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Most prokaryotic cells reside
A) on Earth's surface. B) in lakes, rivers, and oceans. C) in and on nonprokaryotic organisms (including humans and other animals). D) in the oceanic and terrestrial subsurfaces.
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The primate-like mammals first arose about
how many million years ago? a. 95 b. 85 c. 55 d. 25 e. 15
Biology & Microbiology
Cancer is ________
A) uncontrolled cell growth B) any tumor in the body C) cells with proto-oncogene activated D) what happens when cells get old
Biology & Microbiology
How is the process of adding the correct amino acid onto a tRNA molecule catalyzed?
a. by RNA polymerase b. by the tRNA itself c. by an aminoacyl-tRNA synthetase
Biology & Microbiology