Jun 20, 2022 · The ACTN3 577 RR genotype means that you have two copies of the functioning ACTN3 gene (rs1815739 CC). In between those two genotypes is rs1815739 CT. More on …

In particular, the R allele of a common polymorphism (R577X) is associated with enhanced improvements in strength, protection from eccentric training-induced muscle damage, and …

In this blog we will focus more on the extremes of the gene: RR genotype (R allele) and the XX genotype (XX allele).[1][2] Each genotype of the speed gene has a different role and …

Dec 20, 2023 · The R allele encodes the functional alpha-actinin-3 protein, while the X allele results in the absence of this protein in muscle fibers. Individuals who possess the R allele are …

Imagine that you are studying a gene with two alleles, R and r. What genotypes (sets of alleles) would you expect to find in the offspring of two Rr parents? What is the probability of …

Both male and female elite sprint athletes have significantly higher frequencies of the 577R allele than do controls. This suggests that the presence of α-actinin-3 has a beneficial effect on the …

Feb 24, 2020 · The R allele of the ACTN3 gene is associated with elite athletic performance in sprint, power and strength events. In non-athletes, the R allele is linked to higher baseline …

Jan 3, 2025 · Since tongue rolling is a dominant trait, individuals with the ability to roll their tongues will have at least one dominant (R) allele. Those who cannot roll their tongues will …

Jun 16, 2024 · In genetics, "rr" represents a homozygous recessive genotype. This means that an individual carries two copies of the recessive allele for a particular gene. In such cases, the …

Apr 12, 2024 · These data suggest that the RR genotype and R allele, which is associated with a normal expression of α-actinin-3 in fast-twitch muscle fibers, may offer some benefit in …