The red head and neck of Boer goats may be controlled by the recessive allele
of the MC1R gene.
Most genes have two alleles, a dominant allele and a recessive allele
. If an organism is heterozygous for that trait, or possesses one of each allele, then the dominant trait is expressed.
Since there is no guarantee that all my children would be free from the sickle-cell double recessive allele
, then it is better to forsake love.
A recessive allele
at this locus in sweet corn is the sul (small "s") allele.
The recessive allele
model (AT/TT versus AA) revealed no significant differences in physical activity levels between FTO genotype groups (all ES [less than or equal to] 0.11, P [greater than or equal to] 0.28; Supplementary Table 2).
(2008) mentioned that homozygous recessive allele
of badh2 gene also induced the formation of 2AP and rice becomes aromatic.
Leucism, although thought to be controlled by a single recessive allele
(Owen and Shimmings, 1992), has recently been documented to be the result of at least six genes (Reissmann and Ludwig, 2013).
sister chromatids carrying the recessive allele
to be transmitted to the
Swapping genes with someone whose DNA is fairly similar to your own increases the chance that, if you carry some rare genetic mutation normally masked by a dominant "wild-type" version of the gene, your offspring will have two copies of that recessive allele
. When reproducing with close relatives becomes the norm, the odds of hitting the genetic disorder jackpot become higher.
According to this model, vernalization response in barley is mainly determined by VRN-H1 locus on chromosome 5H and VRN-H2 locus on chromosome 4H, where genotypes with dominant allele Vrn-H2 on VRN-H2 locus and recessive allele
vrn-H1 on VRN-H1 locus require the greatest vernalization requirement.
However, we did not find recessive allele
e (c.199 C>T), which was reported by Fontanesi et al.
With our new mathematical concept, biology students can better understand that, in the case of heterozygous traits, a dominant allele determines appearance by contributing 100% to the overall phenotype, whereas the recessive allele
has no observable effects on the organism and, hence, contributes 0%.