In addition to the nucleus of a plant cell, a gene gun can be aimed at ________
A) a Golgi body
B) mitochondria
C) a nucleolus
D) a chloroplast
E) a cell membrane
D
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In human populations, Hardy-Weinberg equilibrium is seen
A) in small, isolated communities. B) in populations with many immigrants. C) in communities founded by a small number of people. D) infrequently and in large communities with random mating.
A potential antimicrobial drug is tested and found to strip away the capsules made by certain pathogenic bacteria. How would this drug affect the bacteria's ability to cause disease?
A) The bacteria would only be able to colonize surface tissues and not penetrate more deeply. B) The bacteria would be unable to acquire needed nutrients from the body. C) The bacteria would be unable to survive inside the phagocyte. D) The bacteria would not be able to kill phagocytes. E) The phagocytes would be better able to ingest the bacteria.
Competition shapes communities because there are usually limited
A. nutrients. B. species. C. interactions. D. resources.
Transfer of genes between organelles and the nucleus:
a. occurred in the past. b. only happens between the mitochondria and the nucleus. c. only happens between the chloroplast and the nucleus. d. is still ongoing.