A prolonged, relatively mild period with ample precipitation alternates with a cold period when plants become dormant
(A) deciduous forest
(B) Tropical rain forest
(C) Desert
(D) Tundra
(E) Taiga
Ans: (A) deciduous forest
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Which of the following types of experimental evidence suggests that a particular organism thought to be part of the human microbiome is, in fact, just a laboratory contaminant?
A. Absence of ribosomal RNA evidence in a specific host location where the organism was not expected to have colonized B. Absence of ribosomal RNA evidence in a specific host location where the organism was believed to have colonized C. Presence of ribosomal RNA evidence in a specific host location where the organism was believed to have colonized D. Presence of ribosomal RNA evidence in a specific host location where the organism was not expected to have colonized
How would a noncarnivorous plant obtain nutrients like nitrogen and phosphorus?
A. from the rain through its leaves B. from animals through its pitcher C. from the air through its leaves D. from the sun through photosynthesis E. from the soil through its roots
Of what advantage is it to have a multiple cloning site (multiple unique restriction sites) embedded in the lacZ component of a plasmid?
What will be an ideal response?
The sequence for the processing of proteins originating outside of the cell involves which of the following?
A. Proteins are broken into fragments, transported to the rough endoplasmic reticulum, fuse with a Golgi vesicle containing class II MHCs, and this complex is transported to the plasma membrane. B. Proteins are broken into fragments within a vesicle, which fuses with a Golgi vesicle containing class I MHCs, and this complex is transported to the plasma membrane. C. Proteins are broken into fragments within a vesicle, which fuses with a Golgi vesicle containing class II MHCs, and this complex is transported to the plasma membrane. D. Proteins are broken into fragments, transported to the rough endoplasmic reticulum, combined with class II MHCs, move to the Golgi apparatus, then to the plasma membrane. E. Proteins are broken into fragments, transported to the rough endoplasmic reticulum, combined with class I MHCs, move to the Golgi apparatus, then to the plasma membrane.