TD
i think it is due to the envinment
To put this answer as simply as possible, an organism's genotype can change due to either a random mutation in the DNA/chromosomes or the insertion of DNA from one organism into the DNA of another organism.
The answer is genotype
its genotyoe :P
The dimpled chin of Kirk Douglas is world-renowned. Your dimpled chin has more of a cleft than a simple dimple.
Yes
None. A dimpled chin is the result of a dip or cleft in the bone of the jaw. It's a genetically inherited trait that can't be developed by exercise.
A dimpled chin a dimple chin
Interesting question, I can see why one might wonder this, since a cleft chin may be though of as 'masculine'. I'm a mixed martial artist, and thinking about the anatomy of the cleft chin would tell me the answer is 'no'. The cleft is due to an incomplete formation of fusing the jawbone together, therefore, fighting someone with a cleft chin may even be something to exploit with a nice right hook.
19,482
Ex. Genotype = Phenotype AA Pure, no cleft chin Aa Hybrid, no cleft chin AA Pure, cleft chin XX Female XY Male
The underside of the chin of a chicken or rooster is called a wattle. A wattle is usually orange in color.
TD
50% would be expected to have the dimple, but in the pot shoot that makes up our genetic material, all or none may in reality end up dimpled.
i think it is due to the envinment
Due to a genotype, which basically mean codes that can produce proteins, a phenotype is observed. Genes contain information for protein synthesis. The proteins produced in turn produce an externally observable character or trait. This external appearance produced due to the effect of a genotype is phenotype.