1. Which kind of chromosomal rearrangement always results in a loss of some genetic material?
A. Duplication.
B. Inversion.
C. Translocation.
D. Deletion.
2. What is a common repair strategy to re-align misaligned chromosomes?
A. Duplication of one of the chromosomes to replace the misaligned one.
B. Formation of a loop.
C. Delete the misaligned portion.
D. Exchange the misaligned segments with aligned segments.
3. A Robertsonian Translocation results in:
A. One fragmented chromosome.
B. Down Syndrome.
C. One large metacentric chromosome.
D. All of these choices are correct.
4. In a Robertsonian Translocation, the formation of viable gametes depends on:
A. Homologous chromosomes forming a cross-like structure.
B. None of these choices is correct.
C. Whether Prophase I was started.
D. How the chromosomes separate.
5. Generally, how do translocation and crossover differ?
A. Translocation occurs in Anaphase I, whereas crossing-over occurs in Prophase I.
B. All of these choices are correct.
C. Translocation is only non-reciprocal, whereas crossing-over is only reciprocal.
D. Translocation is the movement of genetic material between nonhomologous chromosomes, whereas crossing-over occurs between homologous chromosomes.