One possible result of chromosomal breakage is for a fragment to join a nonhomologous chromosome. This is called a (an)
A) deletion.
B) disjunction.
C) inversion.
D) translocation.
E) duplication
Ans: D) translocation.
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Redi concluded from his experiment that
A. maggots arise from decaying meat. B. air is a "vital element" necessary for spontaneous generation. C. living things arise from other living things. D. microorganisms are present in the air.
Which of the following is found in eukaryotic cells but not in prokaryotic cells?
A. nucleus B. mitochondria C. endoplasmic reticulum D. lysosomes E. All of the choices are correct.
You create cells with a version of Cdc6 that cannot be phosphorylated and thus cannot be degraded. Which of the following statements describes the likely consequence of this change in Cdc6?
(a) Cells will enter S phase prematurely. (b) Cells will be unable to complete DNA synthesis. (c) The origin recognition complex (ORC) will be unable to bind to DNA. (d) Cdc6 will be produced inappropriately during M phase.
What are the two primary criteria for identifying "good" controls?
A. They are likely correlated with treatment and they influence the outcome. B. They are likely correlated with the treatment and do not influence the outcome. C. They are likely correlated with the treatment and they do not influence the outcome per se. D. They are likely uncorrelated with the treatment and they influence the outcome.