How does a chromosomal duplication occur

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1. Explain why small deletions and duplications are less likely than large ones to have a detrimental effect on an individual's phenotype. If a small deletion within a single chromosome happens to have a phenotypic effect, what would you conclude about the genes in the region affected by the deletion?"

2.How does a chromosomal duplication occur?"

3. Which of the following types of chromosomal changes would you expect to have phenotypic consequences? Explain your choices.

Pericentric inversion

Reciprocal translocation

Deletion

Unbalanced translocation"

4. Describe three naturally occurring ways that chromosome number can change."

5. Meiotic nondisjunction usually occurs during meiosis I. What is not separating properly: bivalents or sister chromatids? What is not separating properly during mitotic nondisjunction?

Reference no: EM133234393

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