_(______________________ can cause benign or devastating effects on genes depending on how the genetic information is altered when a segment of a chromosome dissociates and reattaches to a different, nonhomologous chromosome. Inversions Inactivations Translocations Non-disjunctions)
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The key terms here are "benign or devastating effects on genes," "segment of a chromosome dissociates and reattaches," and "different, nonhomologous chromosome." Show more…
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If they don't usually cause genetic imbalance, how can translocations and inversions have drastic phenotypic consequences for a somatic cell? (choose all that apply) They can link genes that were previously unlinked, which will affect their independent segregation into gametes It can create a fusion protein with novel functions (neomorph) They can separate a gene from its normal promoter They can place a gene under a much stronger regulatory promoter
Lainey R.
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.
Josee P.
When fragments of chromosomes break-off and then reattach to different chromosomes, the resulting chromosomal abnormalities are called __. inversion translocations polyploidy aneuploidy non-disjunction Problems with separation of chromosomes during meiosis that cause one gamete to receive two copies of the same chromosome and another gamete to receive no copy of the chromosome are called ___ ? inversions translocations polyploidy aneuploidy non-disjunction
Evelyn D.
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