Is long second toe dominant or recessive?
Each of the twin categories, monozygotic and dizygotic, yields similar phenotype frequencies: 76% recessive (i. e., longer hallux) and 24% dominant (i. e., longer second toe).
What does a long second toe mean?
If your second toe is longer than your big toe, you’re in good company. One in five people have Morton’s Toe, as it is called, and while it’s no cause for alarm, it can lead to biomechanical problems that result in forefoot pain, plantar fasciitis and stress fractures.
What nationality has the second toe longer?
Greek toes: your feet are on fire They have Greek foot, also known as “flame foot”, where the second toe is longer than the rest. One study on the incidence of the Greek type of foot shows that it’s a common trait in the Greek population.
Are long toes a dominant gene?
Toe length: The myth This is sometimes said to controlled by one gene with two alleles, with the allele for S dominant to the allele for L. There is no good evidence for this myth; the small number of studies of toe length give contradictory results.
How is Morton’s toe inherited?
The pattern of inheritance of Morton’s toe was without sex predisposition, with larger population exhibiting longer big toe. Undoubtedly, Morton’s toe is genetically inherited, but deviation from the Mendelian model was evident that its inheritance does not conform to the simple dominant-recessive fashion.
Is Morton’s toe a dominant or recessive trait?
Undoubtedly, Morton’s toe is genetically inherited, but deviation from the Mendelian model was evident that its inheritance does not conform to the simple dominant-recessive fashion. It must be noted that the appearance of large frequencies of a trait in a population does not make it dominant.
Is a longer second toe genetic?
About Morton’s toe A study of American college students found that 42.2 percent had longer second toes (45.7 percent of men and 40.3 percent of women). Morton’s toe is hereditary, like most features of your bone structure.
Is the long second toe a dominant trait?
Beers and Clark (1942) described a family in which the long second toe occurred in 10 persons in 3 generations (McKusick, 1998). Although the Mckusick information was quite convincing, additional information was needed to provide further support for the claim that Morton’s toe is, indeed, a dominant trait.
Is the second toe dominant or recessive in caucasoids?
Kaplan (1964) claimed that the relative length of the hallux (footnote) and second toe is simply inherited, with the long hallux being recessive. In Cleveland Caucasoids, the frequency of the dominant and recessive phenotypes was 24 percent and 76 percent, respectively.
Are there any genes that control toe length?
This is sometimes said to controlled by one gene with two alleles, with the allele for S dominant to the allele for L. There is no good evidence for this myth; the small number of studies of toe length give contradictory results. Toes ranging from big toes longer (upper left) to big toe shorter (lower right).
Which is bigger the big toe or the second toe?
Second toe protrudes more than the rest, including the big toe. The first 3 toes are of equal length, while the other two are usually shorter. Large, short big toe, a long second toe, and the other toes decreasing in size to small little toe.