What is the purpose of G banding in cytogenetics?
Understand the Problem
The question is asking about the purpose of G banding in cytogenetics, specifically what it is used for in the study of chromosomes. The options provided suggest that it relates to chromosome identification and visual characteristics.
Answer
Identifies chromosomes by pattern to detect abnormalities.
The purpose of G banding in cytogenetics is to identify chromosomes by their characteristic banding pattern, which helps in detecting chromosomal abnormalities and structural rearrangements such as translocations, deletions, insertions, and inversions.
Answer for screen readers
The purpose of G banding in cytogenetics is to identify chromosomes by their characteristic banding pattern, which helps in detecting chromosomal abnormalities and structural rearrangements such as translocations, deletions, insertions, and inversions.
More Information
G banding uses a special stain, often Giemsa, to create distinct bands on chromosomes, allowing researchers to observe chromosomal disorders or changes. This technique is critical for diagnosing genetic diseases.
Tips
A common mistake is to confuse G banding with other types of chromosome banding techniques like C-banding. Each technique highlights different aspects of chromosome structure.
Sources
- G banding - Wikipedia - en.wikipedia.org
- About G-Banded Karyotyping - WiCell - wicell.org
- Routine Cytogenetic Analysis - Cytogenetics Core - Mayo Clinic - mayo.edu
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