What conditions might lead to position effects on gene expression? A) Homozygosity B) Gene duplication C) Inversions and translocations D) Nondisjunction

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asked Sep 9, 2024 11.7k views

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Kokokok · Answer 1 · 2024-09-13T06:09:21+0000

Homozygosity, gene duplication, inversions and translocations, and nondisjunction can all lead to position effects on gene expression.

Position effects on gene expression can occur under certain conditions:

Homozygosity: When both copies of a gene have the same allele, it can result in altered gene expression patterns.
Gene duplication: If a gene is duplicated, the extra copies may be located in different genomic regions, leading to position effects on gene expression.
Inversions and translocations: These chromosomal rearrangements can alter the positions of genes, affecting their expression.
Nondisjunction: Errors in chromosome segregation during cell division can lead to an incorrect number of chromosomes or imbalances in gene dosage, affecting gene expression.