When an allele can produce a range of phenotypes, its expression is said to be

a. clearly established.
b. variable.
c. codominant.
d. incompletely dominant.
e. incompletely penetrant.


B

Biology & Microbiology

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Most cnidarians are known to produce toxins. In fact, it has been claimed that one particular species produces the most deadly of all toxins on the planet. What feature of this group most likely evolved simultaneously with the evolution of these toxins?

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How did the concept of biogeography shape Darwin's thinking?

What will be an ideal response?

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In the three-domain system, the eukaryotes are represented

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Water molecules readily form hydrogen bonds with other polar molecules, and when they encounter nonpolar molecules they must form hydrogen-bonding networks with neighboring water molecules

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Biology & Microbiology