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 (H), and the trait is controlled by a single gene with two alleles, with the allele for S being dominant.This was proposed by Glass and Kistler (1953) and has been the subject of very little research since then.he myth is that there are just two kinds of thumbs, straight thumbs (S) and hitchhiker's thumbs (H), and the trait is controlled by a single gene with two alleles, with the allele for S being dominant. This was proposed by Glass and Kistler (1953) and has been the subject of very little research since then.
Two fundamental cellular processes are cellular respiration and photosyn-thesis. Cellular respiration is the process by which cells release stored energy from sugars. Photosynthesis is the process in which producer cells use carbon dioxide, water, and nutrients to produce glucose and oxygen.
Cellular respiration is the process used by animals to obtain energy from organic compounds they eat. Difference between Photosynthesis and Cellular Respiration. Both Photosynthesis and Cellular Respiration are processes, which organisms use to obtain energy to sustain life.Both the processes have two stages; photosynthesis occurs in the presence and the absence of light. And cellular respiration occurs in the presence and the absence of oxygen.ellular respiration is the process used by animals to obtain energy from organic compounds they eat. Difference between Photosynthesis and Cellular Respiration. Both Photosynthesis and Cellular Respiration are processes, which organisms use to obtain energy to sustain life.