A cell with a Barr body is_____
a. a bacterium
b. a sex cell
c. from a female mammal
d. infected by Barr virus
C
Biology & Microbiology
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In certain plants, tall is dominant to short. If a heterozygous plant is crossed with a homozygous tall plant, what is the probability that the offspring will be short?
A) 1 B) 1/2 C) 1/4 D) 1/6 E) 0
Biology & Microbiology
Squids and octopuses move by means of water movement through their
A. tentacles. B. cilia and flagella. C. modified mantle cavity. D. muscular foot. E. radula.
Biology & Microbiology
The critical enzymatic virulence factor that helps allow Helicobacter pylori survive in the harsh acidic environment of the stomach is ________, which drives the local pH up.
What will be an ideal response?
Biology & Microbiology
Plants readily take up nitrogen from atmosphere.
A. true B. false
Biology & Microbiology