Asparagus urine. Some people have "hitchhiker's thumbs," which bend backwards with a large angle between the two segments phalanges. The myth is that there are just two kinds of thumbs, straight thumbs S and hitchhiker's thumbs Hand the trait is controlled by a single gene with two alleles, with the allele for S being dominant.
Gene: a region of DNA that instructs the cell on how to build protein s. As a human, you usually get a set of instructions from your mom and another set from your dad Phenotype: the appearance of an individual that results from the interaction between their genetic makeup and the environment.
The Thumb Variation Lab explores not only measuring in the metric system but also serves as an introduction to statistical analysis of data taken by a simple measurement from the human hand, as well as thumb genetics. This is also called hyperextension of the thumb. People who carry either one allele or two alleles for a thumb that is straight, or close to being straight, express the dominant allele. You will be identifying your own thumb, and then everyone elses, as to which phenotype it is, in your class.
Content Benchmark L. Students know heredity is the passage of genetic instructions from one generation to the next generation. Inside almost every cell of every living thing is the blueprint for building that organism.
Dermatoglyphic variations in five ethno-geographical cohorts of Indian populations: A Pilot Study. The Internet Journal of Biological Anthropology. The present study was carried out to understand the genetic relationship if any, among different Indian populations using classical dermatoglyphic markers in post-graduate students.
The thumb is the first digit finger of the hand. When a person is standing in the medical anatomical position where the palm is facing to the frontthe thumb is the outermost digit. The Medical Latin English noun for thumb is pollex compare hallux for big toeand the corresponding adjective for thumb is pollical.
It is used to both describe the appearance of the thumb on physical examination and also the corresponding radiographic appearance. It is similar to how a person would normally angulate and hold out the thumb with the intention to hitchhike. The sign is also used in obstetric ultrasound and on pediatric radiographs to describe the appearance of the fingers in diastrophic dysplasia.
The short thick digit of the human hand, next to the index finger and opposable to each of the other four digits. A corresponding digit in other animals, especially primates. Also called pollex.