Reciprocal translocations usually do not result in gain or loss of genetic information. Why can they still have devastating effects?
a. Homologs can no longer pair properly.
b. Crossing over is disrupted causing meiosis to be arrested during metaphase I.
c. The positions of the genes can be altered with respect to necessary regulatory sequences.
d. The translocation results in an inversion.
c. The positions of the genes can be altered with respect to necessary regulatory sequences.
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Recommended guidelines for laboratory microbiological precautions should reflect the laboratory's ________.
Fill in the blank(s) with the appropriate word(s).
What is the genetic makeup of an individual who has inherited Jacobs syndrome?
A. XXX B. XYY C. XXY D. XO E. none of these
Instances in which cells die shortly after they are produced in development is called:a
morphogenesis. b. type C determination. c. apoptosis. d. non-specific differentiation. e. caspases.
The light microscope was used to observe the cellular structure of cork by _______, who named the chambers "cells."
a. Schleiden and Schwann b. Hooke c. Virkow d. Pasteur