Alleles in a sentence

However, the chance that such a reshuffle occurs between two alleles depends on the distance between those alleles; the closer the alleles are to each other, the less likely it is that such a reshuffle will occur.

A gene with more than two alleles is said to have multiple alleles.

Both parental plants were true-breeding, and one parental variety had two alleles for purple flowers (PP) while the other had two alleles for white flowers (pp).

By consistently increasing the homozygosity of alleles, the population is permitting the expression of these harmful alleles, resulting in genetic disorders.

HLA haplotypes from Denisovans and Neanderthal represent more than half the HLA alleles of modern Eurasians, indicating strong positive selection for these introgressed alleles.

If the selection forces remain the same for many generations, beneficial alleles become more and more abundant, until they dominate the population, while alleles with a lesser fitness disappear.

Mendel also found that each pair of alleles segregates independently of the other pairs of alleles during gamete formation.

This means that the altruistic individual, by ensuring that the alleles of its close relative are passed on, (through survival of its offspring) can forgo the option of having offspring itself because the same number of alleles are passed on.

This phenomenon is called dominance; the biochemical reason for wild-type alleles' dominance over nonfunctional mutant alleles in inborn errors of metabolism comes from how enzymes function.

Each person has multiple alleles of the genes that make up their HLA type.

An organism that has two different alleles for a gene is said be heterozygous for that gene (and is called a heterozygote).

An organism that has two identical alleles for a gene is said to be homozygous for that gene (and is called a homozygote).

Another observation is that traits or alleles that vary from one group to another do not vary at the same rate.

Apart from mutant versions of genes selected in antiquity during domestication, there has been more recent deliberate selection of alleles that affect growth characteristics.

As an autosomal recessive disorder, two PKU alleles are required for an individual to exhibit symptoms of the disease.

Autosomal genetic disorders can arise due to a number of causes, some of the most common being nondisjunction in parental germ cells or Mendelian inheritance of deleterious alleles from parents.

Breeders must avoid breeding from individuals that demonstrate either homozygosity or heterozygosity for disease causing alleles.

Combinations of different alleles thus go on to generate different traits through the information flow charted above.

DNA sequences can change through mutations, producing new alleles.

Due to the inflicted individuals decreased fitness and reproductive success, the recessive alleles will eventually become culled by natural selection.