In which type of cell would you likely find polysomes?
a. endocrine cells
b. oocytes
c. sperm
d. inactive skin cell
e. red blood cells
ANSWER: a
You might also like to view...
In 1909, Charles Walcott discovered fossils in the Burgess Shale of the Canadian Rockies. The area was formed by an underwater mudslide that provided an oxygen free environment, so decomposition was minimal. Why were these fossils so unique?
A. They were from the Cambrian period. B. There were both vertebrate and invertebrate (soft bodied) animals fossilized. C. Only invertebrate (soft bodied) animals were found and no vertebrate animals or plants. D. Before this discovery, it was thought that mudslides could not occur underwater. E. The first bird fossil, Archaeopteryx, was discovered in this area.
Wastewater treatment decreases the amount of
A. biodegradable carbon. B. ammonia and nitrate. C. phosphate. D. pathogens. E. All of the choices are correct.
Water temperature, and therefore global warming, plays a vital role in: a. population stocks
b. none of these choices. c. species distribution. d. species diversity.
Which chemical is used to arrest mitosis at metaphase?
a. Giemsa stain b. acetone c. colchicine d. alcohol e. formaldehyde