Question

although a deletion heterozygote carries one normal chromosome, it may still exhibit a mutant phenotype if the deletion removes a gene that is

Answer 1

In diploid organisms, loss of heterozygosity (LOH), a type of genetic anomaly, refers to the loss of one copy of a complete gene and the surrounding chromosomal area.

• One copy of the missing gene is still there since diploid cells contain two copies of each of their genes, one from each parent.

• In diploid organisms, loss of heterozygosity (LOH), a type of genetic anomaly, refers to the loss of one copy of a complete gene and the surrounding chromosomal area. One copy of the missing gene is still there since diploid cells contain two copies of each of their genes, one from each parent.

However, there is no longer any heterozygosity, which refers to minute variations in the gene versions acquired from each parent.

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