The totality of genes encoded on a human’s 46 chromosomes is known as their genotype. But not all gene variations will be expressed. For instance, you might have one allele for brown eyes and another ...

Have you ever wondered why we carry two copies of each chromosome in all of our cells? During reproduction, we receive one from each of our parents. This means that we also receive two copies, or ...

Japanese researchers have successfully eliminated the extra chromosome responsible for Down syndrome using CRISPR gene ...

If PKU carriers were most likely to have children than non-carriers because of the protective effects of the PKU gene, over time, the disease-causing allele would increase the population.

Diploid organisms will have two potential alleles for any particular stretch (gene, sensu latu) of DNA (e.g., a 'normal' and a 'mutant' allele for Drosophila trait such as eye color). If the alleles ...

This means that we also receive two copies, or alleles, of each gene -- one allele per chromosome or parent. Both alleles are able to produce messenger RNA, which is the recipe needed to make ...

EvolGenius is a two-locus population genetics simulation written for use ... This includes which allele (if either) is fixed; the allele and gene copy fixation times; the final frequencies of ...

In medical (human) genetics, this nomenclature is rarely used. Instead, it is most appropriate to define the significance of the allele based on its effect—the "A" allele is dominant to the "O ...

An allele is a gene that is found at a specific position on a chromosome. It has been established that all genes in our body have two copies, one from each parent. An earlobe is made up of ...

The researchers then compared the relative gene expression levels of each allele across different tissues within each ... “It’s not founded on well-established concepts, such as imprinting, ...

However, their complex genetics make it challenging for breeders ... A new study reveals insights into the significance of ...