Bacteria are single-celled organisms with a single chromosome found in which cell space?
A) nucleus
B) nucleolus
C) nucleoid
D) nuclear envelope
E) mitochondria
C
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RNA is complimentary to
A. Regulatory sequences B. Termination sequences C. The coding strand of DNA D. The template strand of DNA
Describe the life cycles of animals, plants/some fungi, and other fungi/algae with respect to the amount of time each
type of organism spends in their haploid and diploid phases. Also indicate whether those haploid and diploid phases are unicellular or multicellular.
What will be an ideal response?You conduct an experiment in which you inactivate Ras proteins in fibroblast cells. Which of the
following is the most immediate consequence of this procedure? a. The fibroblasts synthesized excess G protein. b. The fibroblasts synthesized excess DAG. c. The fibroblasts no longer responded to calmodulin. d. The fibroblases no longer synthesized DNA in response to growth factors. e. The fibroblasts divided uncontrollably.
You wish to determine which organs function to remove waste products from the hemolymph (blood) of an insect. You do so by injecting a suspension of particulate dye particles into the abdominal cavity of an anesthetized cricket. Where will you find these dye particles 45 minutes later, after you euthanize and dissect the cricket?
A. In the protonephridia B. In the Malpighian tubules C. In the nephridia D. In the antennal glands E. In the urinary bladder F. In the nephrons of the kidneys