In 1910, Thomas Hunt Morgan discovered a white-eyed fruit fly in his population of wild-type, red-eyed flies. This white-eye phenotype occurs:
A. in all male and female fruit flies every other
generation.
B. only in female fruit flies.
C. only in male fruit flies.
D. only in offspring from a white-eyed male
and a red-eyed female.
E. in one-half of the male offspring from a red
-eyed heterozygous female and a white-eyed
male.
E
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A Ramachandran plot shows the sterically limited rotational domains:
A. between proline and noncylic amino acids. B. between polar and nonpolar R groups. C. of an R group with respect to the neighboring R groups. D. of an R group with respect to the polypeptide backbone. E. that two polypeptide chains can occupy.
The second law of thermodynamics states that ____
a. the energy of the universe is a constant b. energy can be neither created nor destroyed c. energy disperses spontaneously d. energy transformations create a more orderly universe e. energy and matter are the same thing
Huffaker's experiment involving oranges showed
A) predators will always consume prey to extinction. B) prey will always outlast predators. C) with enough complexity, predator and prey populations will oscillate. D) both species use oranges for refuge.
Cell membrane
What will be an ideal response?