A transgene is a
A) hybrid gene.
B) gene that contains no introns.
C) bacterial gene that is found in mammalian cells.
D) human gene of viral origin.
E) gene introduced into an organism by artificial means.
E
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It’s your turn to clean out the refrigerator in the lab break room again, which is definitely your favorite way to spend a Friday afternoon. While you are contemplating moldy peaches, and your own disappointment at the lack of a limerick, you glance at the pantry door, from which has appeared a stream of ants carrying bits of cereal and crackers. You follow the ants out the door, down the hall, to a supply closet, where you find they’ve established a colony in a case of printer paper. If these were just any ants, you’d put in a ticket for an exterminator and go home, but alas!; they’re endangered Cube Farm Ants, which means the pantry and supply closet are now wildlife preserves. The thought of all the paperwork you’re going to have to fill out almost ruins your entire
weekend, until you realize you are standing in the middle of a fantastic pun – what is it? a. biodiversity hotspot b. closet species c. wildlife corridor d. ecological niche
Which part of a neuron stores neurotransmitters?
a. dendrites b. cell body c. axon trigger zone d. axon terminal e. axon conducting zone
Which substance is removed from the blood during tubular secretion?
A. aldosterone B. Na+ C. water D. H+ E. Cl-
Transferring Euglena into a dark environment results in the loss of photosynthetic pigment. What conclusion does this support?
A. Euglenoids are neither plant-like or animal-like protists. B. Euglenoids are closely related to plants. C. Euglenoids are obligate photoautotrophs. D. Light triggers heterotrophy.