some times it is others no but to tell you the truth many traits to consider
genetic and environmental variation
Inherited variation is what is passed on through genetics, for example, your eye color. Environmental variation is influnced by the environment, for example, scars or clothing styles.
no it is recessiveFamily studies clearly demonstrate that tongue rolling is not a simple genetic character, and twin studies demonstrate that it is influenced by both genetics and the environment. Despite this, tongue rolling is probably the most commonly used classroom example of a simple genetic trait in humans. Sturtevant (1965) said he was "embarrassed to see it listed in some current works as an established Mendelian case." You should not use tongue rolling to demonstrate basic genetics.No. Your mom is.
Tongue rolling is homozygous dominant and all issue from this pairing will be tongue rollers. This is the only result that is allowable with a standard Punnett square or branch diagram representation. T = tongue roller t = non-tongue roller TT X tt = 4 Tt ======With tongue rolling expressed.
it is ur ginetic info
variation
no
inherited
It's genetically inherited to twist you tongue.
someone leaves you something when they die
inherited variation
environmental