Table of contents

1. Introduction to Genetics51m
2. Mendel's Laws of Inheritance3h 37m
3. Extensions to Mendelian Inheritance2h 41m
4. Genetic Mapping and Linkage2h 28m
5. Genetics of Bacteria and Viruses1h 21m
6. Chromosomal Variation1h 48m
7. DNA and Chromosome Structure56m
8. DNA Replication1h 10m
9. Mitosis and Meiosis1h 34m
10. Transcription1h 0m
11. Translation58m
12. Gene Regulation in Prokaryotes1h 19m
13. Gene Regulation in Eukaryotes44m
14. Genetic Control of Development44m
15. Genomes and Genomics1h 50m
16. Transposable Elements47m
17. Mutation, Repair, and Recombination1h 6m
18. Molecular Genetic Tools19m
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

6. Chromosomal Variation

Chromosomal Mutations: Aberrant Euploidy

Genetics

6. Chromosomal Variation

Chromosomal Mutations: Aberrant Euploidy

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Multiple Choice

One possible result of chromosomal breakage is for a fragment to:

form a circular DNA molecule that functions independently

cause the entire chromosome to be lost from the cell

duplicate itself and increase the chromosome number

attach to a nonhomologous chromosome, resulting in translocation

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Verified step by step guidance

Understand the concept of chromosomal breakage: it refers to a physical break in a chromosome, which can lead to various structural changes in the chromosome or its fragments.

Review the possible fates of a chromosomal fragment after breakage, such as forming a circular DNA molecule (which can act independently), being lost from the cell, or duplicating itself.

Recognize that one important outcome of chromosomal breakage is when a fragment attaches to a nonhomologous chromosome, which is a chromosome that is not its matching pair, leading to a structural rearrangement called translocation.

Recall that translocation involves the exchange or attachment of chromosome segments between nonhomologous chromosomes, which can have significant genetic consequences.

Conclude that among the options given, the correct result of chromosomal breakage is the attachment of the fragment to a nonhomologous chromosome, resulting in translocation.