Question

Classify the following examples and characteristics depending on what type of change in chromosome structure it describes.

1. May or may not cause physical abnormalities
2. Examples include Alagille syndrome, chronic myelogenous leukemia, and Burkitt leukemia
3. Occurs when pieces of a chromosome are exchanged between non-homologous pairs
4. Occurs when a piece of a chromosome breaks and reattaches upside down
5. Translocations Deletions Occurs when the same piece is repeated within a chromosome 5
6. Examples include Wiliams syndrome and Cri du chat syndrome
7. Occurs when pieces of a chromosome are lost
A. Duplications
B. Inversions
C. Translocations
D. Deletions

Answer 1

1. It depends on the DNA region that has been affected by the chromosome rearrangement

2.Translocations

3.Translocations

4. Inversions

5. Duplications

6. Deletions

Step-by-step explanation:

A translocation is a chromosome rearrangement where a chromosome fragment breaks off and the resulting portion attaches to another genome region. An inversion occurs when a single chromosome fragment is reversed end to end, thereby also producing a chromosome rearrangement. Inversions can be classified into pericentric (include the centromere) and paracentric (not include the centromere). Finally, chromosome duplications and chromosome deletions are opposite rearrangements where chromosome portions are copied in tandem and eliminated, respectively.